1,722,918 research outputs found
Cryptocarya rigidifolia van der Werff 2013, nom. nov.
No full textCryptocarya rigidifolia van der Werff, nom. nov. Ξ Ravensara elliptica Kosterm. in Not. Syst. (Paris) 8: 110. 1939 [non Cryptocarya elliptica Schltr. in Bot. Jahrb. Syst. 39. 108. 1906]. Typus: MADAGASCAR. Prov. Toamasina: Forêts montagneuses de l’Est, fl., Louvel 229 (holo-: P [P00853161]!). Observations.– Cryptocarya rigidifolia is very similar to C. retusa (Nees) van der Werff, but the type (Du Petit Thouars s.n.: holo-: B; iso-: P [P00540954]) of the latter lacks flowers, and the slight vegetative differences have made it difficult to decide whether or not they represent separate species, the type also lacks any indication of the collection locality. Examination of recent flowering collections that could be referred to one or other of these species has shown that lowland (5-20 m altitude) specimens have dorsally pubescent anthers and weakly raised secondary veins, while collections from higher altitude (950- 1440 m) have glabrous anthers (although the filaments are pubescent)and more stronglyraisedsecondary veins. Leaves of the type of C. retusa agree with the leaves of the lowland specimens, while the type of C. rigidifolia agrees with the specimens from higher altitude in leaf and flower characters. Therefore I accept C. retusa as a lowland species characterized by its pubescent anthers and weakly raised lateral veins and C. rigidifolia as an interior species from higher elevations with glabrous anthers and more pronounced raised lateral veins. Fruits of C. rigidifolia are ruminate. Ravensara coriacea Kosterm. is also very similar to Cryptocarya rigidifolia and C. retusa.The type specimen (Service Forestier 12356) is from Menagisy-Brickaville and has young inflorescences. As long asflowers are unknown, it is difficult to determine if Ravensara coriacea is a synonym of Cryptocarya rigidifolia or C. retusa or a distinct species. Both C. rigidifolia and C. retusa have priority over Ravensara coriacea. Recent collections seen. – MADAGASCAR. Prov. Antananarivo: Antananarivo, Ankozobe, Ankafobe, 18º07’14”S 47º11’30”E, 1442 m, 24.II.2005, fr., Lehavana & al. 286 (MO); 7 km E of Anjozorobe, 18º22’S 48º00’E, 1300 m, 12.V.1987, fr., Schatz & al. 1388 (MO). Prov. Toamasina: Phelps Dodge project site, 15 km NE of Moramanga, 18º51’02”S 48º18’24”E, 950 m, 13.II.1997, st., Andriatsiferana & al. 2088 (MO), Alaotra-Mangoro Region, Ambohibary, Ambatovy, 18º50’48”S 48º17’51”, 1050 m, 3.V.2007, fr., Antilahimena & al. 5516 (MO); Toamasina, 2 to 4 km E of Perinet, 1000 m, 24.IV.1974, fr., Gentry 11251A (MO); Antetezampandrana, pk 27-28, route Moramanga-Anosibe, s.d., fl., Service Forestier 26842 (MO).Published as part of van der Werff, Henk, 2013, Nomenclatural notes on Cryptocarya R. Br. (Lauraceae) from Madagascar, pp. 303-306 in Candollea 68 (2) on page 305, DOI: 10.15553/c2012v682a14, http://zenodo.org/record/570629
Cryptocarya occidentalis van der Werff 2013, nom. nov.
No full textCryptocarya occidentalis van der Werff, nom. nov. Ξ Ravensara perrieri Dubard & Dop in Bull. Soc. Bot. France 54: 156. 1907 [non Cryptocarya perrieri Danguy in Bull. Mus. Hist. Nat. (Paris) 33: 523. 1927. ≡ Aspidostemon perrieri (Danguy) Rohwer]. Typus: MADAGASCAR. Prov. Mahajunga: Ambongo, rives de la Mahavavy, VIII.1904, fl., Perrier de la Bâthie 1789 (holo-: P [P00540958] image seen; iso-: P [P00853 160]!, P [P00540959]). Observations.–This species is widespread in the western parts of Madagascar and can be recognized by its glabrous, chartaceous, lanceolate to oblong-lanceolate leaves with inconspicuous venation (secondary veins poorly visible). The inflorescences and flowers are minutely brown puberulous. The fruits are ruminate. DUBARD & DOP (1907) recognized the difficulty of assigning this species to either Cryptocarya or Ravensara because the type was in flower.They went ahead with the description because “Dans tous les cas, l’espèce est nouvelle, quel que soit le genre auquel elle appartient”. Dubard & Dop cited as type collection Perrier de la Bâthie 1 and as type locality “RiviÈre Mahoudedy supérieure”, while KOSTERMANS (1939) cited Perrier de la Bâthie 1789 and gave as type locality “Mahomavy”. The scan of the holotype shows that the collection number 1789 has been scratched out and replaced with 1. The handwritten type locality seems to be “Mahavavy”, not “Mahoudedy” or “Mahomavy”, but the writing is not entirely clear. Recent collections seen. – MADAGASCAR. Prov. Antsiranana: Forêt d’Ampasindava, 7.VII.1956, fl., Service Forestier 16517 (MO); Beravina, 18.VIII.1955, fl., Service Forestier 15141 (MO); Beravina, 19.VIII.1956, fl., Service Forestier 16355 (MO). Prov. Mahajanga: Melaky, Maintirano, au N de Belitsaky, le long de la riviÈre de Manomba, 17º52’23’’S 44º28’52’’E, 140 m, 25.X.2009, fr., Andriamihajarivo & al. 1802 (MO). Prov. Toliara: Beroroha à 4 km avant Antsoa, 21º15’43’’S 45º10’04’’E, 461 m, 3.XII.2010, fr., Andriantiana & al. 1004 (MO); Atsimo-Andrefana Region, Makay Massif, along the Menampandaha River, 21º11’57’’S 45º20’15’’E, 510 m, 23.XI.2010, fr., Phillipson & al. 6201 (MO); Beroroha, Betorabato, 21º34’04’’S 45º34’34’’E, 296 m, 13.I.2011, fr., Razakamalala 6001 (MO).Published as part of van der Werff, Henk, 2013, Nomenclatural notes on Cryptocarya R. Br. (Lauraceae) from Madagascar, pp. 303-306 in Candollea 68 (2) on pages 305-306, DOI: 10.15553/c2012v682a14, http://zenodo.org/record/570629
Cryptocarya oblonga van der Werff, comb. nova.
No full text<i>Cryptocarya oblonga</i> (Kosterm.) van der Werff, comb. nova. <p> Ξ <i>Ravensara oblonga</i> Kosterm. in Bull. Jard. Bot. Etat Bruxelles 28: 184. 1958.</p> <p> <b>Typus: MADAGASCAR. Prov. Toliara:</b> Mandena, Fort-Dauphin, 1.V.1955, st., <i>Service Forestier 13163</i> (holo-: P [P00853162]!; iso-: BO, P [P00540966], TEF [TEF000298]).</p> <p> <i>Observations</i>. – The type (the only collection known when the species was described) is sterile. Four recent collections have broadened our knowledge of this species. <i>Dumetz 696</i> (st.) is also from Mandena, at an altitude of 10 m. <i>Rajoharison & al. 222</i> is from Antsotso, and occurs in “forêt sur sable”. Its fruits are round, smooth, ca 1.3 × 1.3 cm, with the tepals persisting on top of the fruits, and its infructescences are short, up to 3 cm long. <i>Ramison & Rabehevitra 557</i> is from Sainte Luce in “forêt littorale”. The inflorescences are short, ca 2 cm long, clustered distally on the twigs and resemble a terminal inflorescence. The young growth is densely ferruginous pubescent although the indument wears off quickly. Leaves of this species are to 10 cm long, with an obtuse to rounded base and a rounded or emarginated apex. Lateral veins are immersed on the upper leaf surface and immersed or weakly raised on the lower surface. The fruits are ruminate.</p> <p> <i>Cryptocarya oblonga</i>, a small tree to 10 m tall, is restricted to asmall area of coastal forest on sand Nof Tolagnaro (Fort Dauphin).</p> <p> <i>Recent collections seen</i>. – <b>MADAGASCAR. Prov. Toliara:</b> Mandena, 24º57’S 47º00’E, 0-10 m, 17.IV.1989, st., <i>Dumetz 696</i> (MO); Ampasy, 24º57’25’’S 47º00’04’’E, 0-10 m, 30.IX.2000, st., <i>Rabenantoandro & al. 296</i> (MO); Iabakoho, Antsotso, 24º35’S 47º12’E, 27.V.2007, fr., <i>Rajoharison & al. 222</i> (MO); Mahatalaky, Sainte Luce, 24º47’S 47º11’E, 2.II.2008, fl., <i>Ramison & Rabehevitra 557</i> (MO).</p>Published as part of <i>van der Werff, Henk, 2013, Nomenclatural notes on Cryptocarya R. Br. (Lauraceae) from Madagascar, pp. 303-306 in Candollea 68 (2)</i> on page 303, DOI: 10.15553/c2012v682a14, <a href="http://zenodo.org/record/5706291">http://zenodo.org/record/5706291</a>
Cryptocarya polyneura van der Werff 2013, comb. nova.
No full text<i>Cryptocarya polyneura</i> (Kosterm.) van der Werff, comb. nova. <p> Ξ <i>Ravensara polyneura</i> Kosterm. in Bull. Jard. Bot. Etat Bruxelles 28: 188. 1958.</p> <p> <b>Typus: MADAGASCAR</b>. <b>Prov. Toamasina:</b> Manakambahiny Est, Ambatodrazaka, Zahamena, 28.II.1950, fl., <i>Réserves Naturelles 1936</i> (holo-: P [P00540957]; iso-: P [P00540955, P00540956, P00853160]!, TEF [TEF000291]).</p> <p> <i>Observations</i>.–The type of <i>Ravensara polyneura</i> is only in bud. Kostermans cited four additional collections, with flowers or fruits, but did not include those in his description. This species has long and narrow,coriaceous leaves, at least three times as long as wide, dark green when dry and with an obtuse to rounded base. Mature leaves are glabrous and the midrib and lateral veins are raised on the lower surface. The inflorescences are short, to 3 cm, densely dark brown pubescent with nearly sessile flowers arranged in dense clusters. The young growth has a similar dark brown pubescence as the flowers and inflorescence, but the twigs become soon glabrous. The fruits are ruminate.</p> <p>Recent collections all come from the area between Moramanga and the Zahamena reserve at altitudes between 900 and 1160 m.</p> <p> This species has been confused with <i>Cryptocarya pervillei</i> Baill., another species with long and narrow leaves. It differs in having a light brown to golden brown indument (not dark brown), less coriaceous leaves with a more persistent indument. I had previously identified <i>Rakotomalaza 1334</i> and <i>Andriatsiferana & al. 2109</i> as <i>C. myristicoides</i> Baker, but that species has stiffly chartaceous (not coriaceous) leaves with immersed veins, and longer, less condensed inflorescences. The collection <i>Antilahimena 5915</i> was previously identified as <i>C. acuminata</i> Merr. (an error for <i>Ravensara acuminata</i> (Meisn.) Baill. = <i>Cryptocarya litoralis</i> van der Werff), acoastal species also with less coriaceous leaves, brown pubescence (not dark brown) and often conduplicate (rather than flat) leaves. Duplicates may have been distributed under these identifications.</p> <p> <i>Recent collections seen</i>. – <b>MADAGASCAR. Prov. Toamasina:</b> Phelps Dodge project site, 15 km NE of Moramanga, 18º51’02’’S 48º18’24’’E, 950 m, 13.II.1997, fl., <i>Andriatsiferana & al. 2109</i> (MO); Moramanga, Andasibe, Ambatovy forest, 18º48’29’’S 48º18’50’’E, 1060 m, fr., <i>Antilahimena & al. 3004</i> (MO); Moramanga, Andasibe, Menalamba, 18º51’06’’S 48º18’39’’E, 1119 m, 18.XII.2005, fr., <i>Antilahimena & Edmond 4457</i> (MO); Moramanga, Ambohibary, Ambatovy / Andranovery forest, 18º52’04’’S 48º18’15’’E, 1031 m, 24.X.2007, fr., <i>Antilahimena & Marcellin 5915</i> (MO); Moramanga, Andasibe: Forêt d’Analamay, 18º50’51’’S 48º19’29’’E, 990 m, 8.VI.2007, fr., <i>Bernard 559</i> (MO); Route Analamay, 18º49’47’’S 48º18’48’’E, 1160 m, 16.V.1997, y. fr., <i>Rakotomalaza & al. 1334</i> (MO). Réserve forestiÈre Sandrangato, Moramanga, 30.X.1964, fr., <i>Service Forestier 21904</i> (MO); Périnet, Analamazaotra, Moramanga, 28.IX.1966, fr., <i>Service Forestier 26105</i> (MO).</p>Published as part of <i>van der Werff, Henk, 2013, Nomenclatural notes on Cryptocarya R. Br. (Lauraceae) from Madagascar, pp. 303-306 in Candollea 68 (2)</i> on page 304, DOI: 10.15553/c2012v682a14, <a href="http://zenodo.org/record/5706291">http://zenodo.org/record/5706291</a>
Cryptocarya ambrensis van der Werff 2013, nom. nov.
No full textCryptocarya ambrensis van der Werff, nom. nov. Ξ Ravensara areolata Kosterm. in Not. Syst. (Paris) 8: 107. 1939 [non Cryptocarya areolata Gamble in Bull. Misc. Inform. Kew 1910: 144. 1910]. Typus: MADAGASCAR. Prov. Antsiranana: Roussettes, Diégo Suarez, s.d., fl., Ursch 187 (holo-: P [P00540982]; iso-: BO, P [P00853166]!). = Ravensara acutifolia Kosterm. in Bull. Jard. Bot. Etat Bruxelles 28: 175. 1958 [non Cryptocarya acutifolia H. W. Li in Acta Phytotax. Sin. 17: 69. 1979]. Typus : MADAGASCAR. Prov. Antsiranana: J. B. 19, Roussettes, Diégo Suarez, 11.XI.1954, fl., Service Forestier 11014 (holo-: P [P00853165]!; iso-: P [P00540987]). Observations. – Cryptocarya ambrensis is an inconspicuous species with small (to 7 × 3cm), chartaceous, e lliptic, glabrous leaves. Terminal buds and inflorescences are minutely brown puberulous; twigs are glabrous except for the very tips. Inflorescences are laxly flowered and up to 5 cm long; fruits are ruminate. Numerous small gland dots are visible on the lower leaf surface, but there is some variation in leaf shape from distinctly acute apices to blunt apices. I have not seen the two paratypes of Ravensara acutifolia cited by KOSTERMANS (1958) which were collected in “Tianarantsoa”, believed to be an error for Fianarantsoa, in southcentral Madagascar. The type and all recent collections are from the Montagne d’Ambre in the far north of Madagascar, between 840 and 1240 m elevation. The collection Gautier & Chatelain 4973, collected near Daraina 85 km SE of Montagne d’Ambre resembles Cryptocarya ambrensis vegetatively; however, it lacks the gland dots on the lower leaf surface and the fruit is not ruminate; it represents an unknown Cryptocarya species. Recent collections seen. – MADAGASCAR. Prov. Antsiranana: Montagne d’Ambre, 1.X.2005, buds, Acevedo-Rodriguez 14514 (MO); Montagne d’Ambre PN, Lac Maudit, 12º34’S 49º09’E, 1100- 1250 m, 3-10.VI.1993, fr., Andrianantoanina & Bezana 143 (MO); ibid. loc., Andrianantoanina & Bezana 166 (MO); Montagne d’Ambre, prÈs d’Antsalaka, 12º27’S 49º13’E, 250-500 m, 19- 26.VII.1993, fr., Andrianantoanina & al. 229 (MO); Parc National de Montagne d’Ambre au Grand Lac, 12º35’S 49º09’E, 1475 m, 9- 17.IX.1993, fr., Andrianantoanina 327 (MO); Montagne d’Ambre, à la Station des Roussettes vers la piste d’Ankorefo, 12º31’30”S 49º10’ 17”E, 800-1000 m, 26.IX.1995, Andrianantoanina & Bezara 872 (MO); Montagne d’Ambre National Park, at Cul de Sac, 12º31’36”S 49º10’20”E, 840 m, fr., Harder & al. 1642 (MO); Montagne d’Ambre, partie centrale, 12º34’S 49º10’E, 1249 m, 11.XI.2007, buds, Ranirison & al. 1167 (MO); Montagne d’Ambre, partie nord, 12º28’S 49º10’E, 1015 m, 30.V.2008, fr., Trigui & al. 460 (MO). Three other Cryptocarya species have been reported from the North of Madagascar,including two others from Montagne d’Ambre. Cryptocarya septentrionalis van der Werff (type Ursch 96, prope Diego Suarez) differs from C. ambrensis by its lanceolate leaves; the eight recent collections are from lowlands up to 320 m. Cryptocarya ocoteifolia Kosterm. is based on a type collected in the forêt d’Ambre (Service Forestier 7208) which consists of a leafy twig and a detached fruit. KOSTERMANS (1957) also cited four sterile paratypes. However, KOSTERMANS (1962) noted that Capuron had pointed out that the type collection was a mixture, consisting of Cryptocarya fruits and leafy Ocotea twigs. Because neither detached Cryptocarya fruits nor sterile Ocotea twigs can be identified with any confidence, I consider Cryptocarya ocoteifolia an incompletely known species. Cryptocarya rotundifolia Kosterm. is only known from the type collected in the Forêt d’Ambre near Antsiranana (Service Forestier 7192). The specimen consists of leafy twigs and detached fruits; the leaves are large, broad (to 14 × 8 cm) and chartaceous. The fruits are old and the fleshy outer layer has disappeared. The fruits are not ruminate. The large, rather thin leaves are unlike any other collection of Cryptocarya from the north of Madagascar. It is possible that the type is also a mixed collection. More and better collections are needed to establish C. rotundifolia as a good species.Published as part of van der Werff, Henk, 2013, Nomenclatural notes on Cryptocarya R. Br. (Lauraceae) from Madagascar, pp. 303-306 in Candollea 68 (2) on pages 304-305, DOI: 10.15553/c2012v682a14, http://zenodo.org/record/570629
Révision synoptique du genre <i>Beilschmiedia</i> (Lauraceae) à Madagascar.
No full textUne révision des espèces de Beilschmiedia vivant à Madagascar est présentée. Neuf espèces sont reconnues dont deux nouvelles, B. pedicellata van der Werff et B. rugosa van der Werff, décrites ici. Deux espèces demeurent imparfaitement connues. Le rattachement à Beilschmiedia de plusieurs spécimens à fleurs dimères, typiques du genre affin Potameia, est proposé.A review of the species of Beilschmiedia occurring in Madagascar is presented. Nine species are recognized, of which two, van der Werff and B. rugosa van der Werff, are described as new. Two previously described species are treated as imperfectly known. Several collections with dimerous flowers typical of the related genus Potameia are accepted as belonging in Beilschmiedia.</i
Révision du genre <i>Ocotea</i> Aubl. (Lauraceae) de Madagascar et des Comores
No full textLe genre Ocotea Aubl. est revu pour Madagascar et les Comores, on y reconnaît 35 espèces, toutes endémiques de cette région. Parmi elles, cinq espèces nouvelles sont ici décrites comme nouvelles : O. ambrensis van der Werff, sp. nov., O. glaberrima van der Werff, sp. nov., O. ivohibensis van der Werff, sp. nov., O. spanantha van der Werff, sp. nov. et O. zahamenensis van der Werff, sp. nov. En raison d’un manque d’informations complémentaires, O. macrorhiza Kosterm. est considéré comme incomplètement connu, tandis que deux autres espèces demeurent provisionnelles. Une clé de détermination (avec une bifurcation évitant l’emploi parfois délicat du type de nervation), des descriptions, des cartes de répartition et une liste des spécimens étudiés sont fournies.A revision of the genus Ocotea Aubl. in Madagascar and the Comoro Islands is presented. 35 species are recognized, all endemic to the region. Five species are described as new. A key to the species, descriptions, distribution maps and a list of specimens studied are presented.</p
Kubitzkia mezii van der Werff
No full text[602] Kubitzkia mezii (Kosterm.) van der Werff Taxon 35 (1): 165 [Feb. 1986] (van der Werff 1986). — Systemonodaphne mezii Kosterm., Recueil Trav. Bot. Néerl. 33: 756 (Kostermans 1936), in obs. VERNACULAR NAMES. — Wp: kwata pili. HERBARIUM DATA (FG). — 29 collections at CAY. Sel. exs.: J. Martin 45 (holotype not traced; iso-, K [K000601987], P [P00745651, P00745652, P00745653], U [U0002743]). INVENTORY DATA (FG). — 7 trees in 6 plots; Fmax <1 %; dbhinv = 16.6 cm.Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 480, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/745877
Tachigali melanocarpa van der Werff
No full text[960] Tachigali melanocarpa (Ducke) van der Werff Ann. Missouri Bot. Gard. 95 (4): 649 [30 Dec. 2008] (van der Werff 2008). — Sclerolobium melanocarpum Ducke, Arch. Inst. Biol. Veg. 2 (1): 43 [Sep. 1935] (Ducke 1935). VERNACULAR NAMES. — Pa: miumiu-asiru, miumiu-wašiunu • Wp: tulili • Br: taxi-branco-da-terra-firme. HERBARIUM DATA (FG). — 17 collections at CAY. Sel. exs.: D. Sabatier & J.-F. Molino 5556. INVENTORY DATA (FG). — 50 trees in 35 plots; Fmax = 1.1 %; dbhinv = 104.5 cm.Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 542, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/745877
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