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Six new species of Maesa (Primulaceae) from Papua New Guinea
No full textSumanon, Pirada, Eiserhardt, Wolf L., Balslev, Henrik, Utteridge, Timothy M.A. (2021): Six new species of Maesa (Primulaceae) from Papua New Guinea. Phytotaxa 505 (3): 245-261, DOI: 10.11646/phytotaxa.505.3.1, URL: http://dx.doi.org/10.11646/phytotaxa.505.3.
FIGURE 4. Truongsonia lecongkietii. Flowers and fruit. A. Rachilla with floral triads and open staminate flowers. B. Open staminate flower. C, D in Truongsonia (Arecaceae: Arecoideae: Truongsonieae)-a new palm genus and tribe from Vietnam
No full textFIGURE 4. Truongsonia lecongkietii. Flowers and fruit. A. Rachilla with floral triads and open staminate flowers. B. Open staminate flower. C, D. Fruit whole and in section (ruler with mm scale). Photos: N.S. Lý.Published as part of Sâm, Lý Ngọc, Baker, William J., Bellot, Sidonie, Dransfield, John, Eiserhardt, Wolf L. & Henderson, Andrew, 2023, Truongsonia (Arecaceae: Arecoideae: Truongsonieae)-a new palm genus and tribe from Vietnam, pp. 201-212 in Phytotaxa 613 (3) on page 207, DOI: 10.11646/phytotaxa.613.3.1, http://zenodo.org/record/834641
FIGURE 1. Truongsonia lecongkietii. Habit. A, B in Truongsonia (Arecaceae: Arecoideae: Truongsonieae)-a new palm genus and tribe from Vietnam
No full textFIGURE 1. Truongsonia lecongkietii. Habit. A, B. Habit in the wild. C. Uprooted plant showing stem with saxophone growth. Photos: N.S. Lý.Published as part of Sâm, Lý Ngọc, Baker, William J., Bellot, Sidonie, Dransfield, John, Eiserhardt, Wolf L. & Henderson, Andrew, 2023, Truongsonia (Arecaceae: Arecoideae: Truongsonieae)-a new palm genus and tribe from Vietnam, pp. 201-212 in Phytotaxa 613 (3) on page 203, DOI: 10.11646/phytotaxa.613.3.1, http://zenodo.org/record/834641
FIGURE 6 in Truongsonia (Arecaceae: Arecoideae: Truongsonieae)-a new palm genus and tribe from Vietnam
No full textFIGURE 6. Phylogenetic relationships of Truongsonia and other Arecoideae. Numbers indicate local posterior probabilities for each branch (maximal support = 1). The tree was rooted on subfamily Ceroxyloideae (Ceroxylon quindiuense).Published as part of Sâm, Lý Ngọc, Baker, William J., Bellot, Sidonie, Dransfield, John, Eiserhardt, Wolf L. & Henderson, Andrew, 2023, Truongsonia (Arecaceae: Arecoideae: Truongsonieae)-a new palm genus and tribe from Vietnam, pp. 201-212 in Phytotaxa 613 (3) on page 209, DOI: 10.11646/phytotaxa.613.3.1, http://zenodo.org/record/834641
FIGURE 3. Maesa brassii Sumanon & Utteridge. A in Six new species of Maesa (Primulaceae) from Papua New Guinea
No full textFIGURE 3. Maesa brassii Sumanon & Utteridge. A habit of fruiting plant; B node with petiole and inflorescence base; C abaxial surface of leaf; D part of infructescence; E fruit apex; F LS fruit (larger fruit than E, drawn at lower magnification); G scales on fruit surface; H scales and hairs on pedicel. All from Brass 23676 (K). Scale bars: single bar = 1 mm, graduated single bar = 2 mm and 5 mm, double bar = 1 cm, graduated double bar = 5 cm. Illustration by Andrew Brown.Published as part of Sumanon, Pirada, Eiserhardt, Wolf L., Balslev, Henrik & Utteridge, Timothy M.A., 2021, Six new species of Maesa (Primulaceae) from Papua New Guinea, pp. 245-261 in Phytotaxa 505 (3) on page 251, DOI: 10.11646/phytotaxa.505.3.1, http://zenodo.org/record/542546
FIGURE 5. Maesa pusilliflora Sumanon & Utteridge. A in Six new species of Maesa (Primulaceae) from Papua New Guinea
No full textFIGURE 5. Maesa pusilliflora Sumanon & Utteridge. A habit (all leaves abaxial) with example of adaxial leaf surface to right; B node with petiole and base of inflorescence; C abaxial surface of leaf; D part of inflorescence; E pistillate flower, hydrated; F corolla opened flat; G LS of flower in E after removal of corolla; H fruit. A–G from Takeuchi 4645 (K), H from Takeuchi 4645 (BISH). Scale bars: single bar = 1 mm, graduated single bar = 5 mm (D) and 2 mm (H), double bar = 1 cm, graduated double bar = 5 cm. Illustration by Andrew Brown.Published as part of Sumanon, Pirada, Eiserhardt, Wolf L., Balslev, Henrik & Utteridge, Timothy M.A., 2021, Six new species of Maesa (Primulaceae) from Papua New Guinea, pp. 245-261 in Phytotaxa 505 (3) on page 254, DOI: 10.11646/phytotaxa.505.3.1, http://zenodo.org/record/542546
FIGURE 2. Truongsonia lecongkietii. Vegetative morphology. A in Truongsonia (Arecaceae: Arecoideae: Truongsonieae)-a new palm genus and tribe from Vietnam
No full textFIGURE 2. Truongsonia lecongkietii. Vegetative morphology. A. Leaf, abaxial surface, showing fibre-like extension of the rachis through the sinus of the two leaf lobes. B. Leaf, adaxial surface. C. Leaf sheath, abaxial surface. D. Base of clump. E. Petioles, showing dry, fibrous, disintegrating ligules. Photos: N.S. Lý.Published as part of Sâm, Lý Ngọc, Baker, William J., Bellot, Sidonie, Dransfield, John, Eiserhardt, Wolf L. & Henderson, Andrew, 2023, Truongsonia (Arecaceae: Arecoideae: Truongsonieae)-a new palm genus and tribe from Vietnam, pp. 201-212 in Phytotaxa 613 (3) on page 204, DOI: 10.11646/phytotaxa.613.3.1, http://zenodo.org/record/834641
FIGURE 3. Truongsonia lecongkietii. Inflorescence morphology. A. Entire inflorescence. B in Truongsonia (Arecaceae: Arecoideae: Truongsonieae)-a new palm genus and tribe from Vietnam
No full textFIGURE 3. Truongsonia lecongkietii. Inflorescence morphology. A. Entire inflorescence. B. Distal part of inflorescence showing rachillae and peduncular bract. C. Base of plant showing insertion of inflorescence. D. Rachillae bearing young fruit. Photos: N.S. Lý.Published as part of Sâm, Lý Ngọc, Baker, William J., Bellot, Sidonie, Dransfield, John, Eiserhardt, Wolf L. & Henderson, Andrew, 2023, Truongsonia (Arecaceae: Arecoideae: Truongsonieae)-a new palm genus and tribe from Vietnam, pp. 201-212 in Phytotaxa 613 (3) on page 206, DOI: 10.11646/phytotaxa.613.3.1, http://zenodo.org/record/834641
FIGURE 6. Maesa prolatifructa Sumanon & Utteridge. A in Six new species of Maesa (Primulaceae) from Papua New Guinea
No full textFIGURE 6. Maesa prolatifructa Sumanon & Utteridge. A habit; B node with petiole and base of inflorescence; C abaxial surface of leaf; D terminal portion of inflorescence; E hydrated flowers, one large calyx lobe removed, young 'dome' of corolla visible; F flower to show young corolla 'dome'; G corolla from below showing insertion point of young stamen (5-merous flower); H corolla opened flat; I fruit, dry; J fruit after soaking; K detail of scales from fruit surface. A, C, I–K from Stevens & Lelean. LAE 58298 (K); B, Croft & Katik NGF 41940 (K); D–H Sands 2329 (K). Scale bars: single bar = 1 mm, graduated single bar = 5 mm, double bar = 1 cm, graduated double bar = 5 cm. Illustration by Andrew Brown.Published as part of Sumanon, Pirada, Eiserhardt, Wolf L., Balslev, Henrik & Utteridge, Timothy M.A., 2021, Six new species of Maesa (Primulaceae) from Papua New Guinea, pp. 245-261 in Phytotaxa 505 (3) on page 257, DOI: 10.11646/phytotaxa.505.3.1, http://zenodo.org/record/542546
FIGURE 5. Truongsonia lecongkietii. A. Rachilla. B. Floral triad with one open staminate flower. C. Floral triad, one staminate flower removed. D. Staminate flower bud. E in Truongsonia (Arecaceae: Arecoideae: Truongsonieae)-a new palm genus and tribe from Vietnam
No full textFIGURE 5. Truongsonia lecongkietii. A. Rachilla. B. Floral triad with one open staminate flower. C. Floral triad, one staminate flower removed. D. Staminate flower bud. E. Open staminate flower bud in longitudinal section. F. Staminate petal. G. Staminate sepal. H. Androecium. I, J. Staminate flower in two views. K. Pistillate flower bud. L. Pistillate petal. M. Pistillate sepal. N. Gynoecium in two views. O. Ovary in transverse section, showing 3 locules, each with 1 ovule. P, Q. Fruit whole and in longitudinal section, showing lateral embryo. R. Detail of basal stigmatic remains on fruit. S. Seed. Scale bar: A, P, Q, S = 7 mm; B, C, I, J = 1.6 mm; D–H, K–O = 1.25 mm, R = 2.5 mm. All from Ngọc-Sâm Lý, Lý-1521 (NY). Drawn by Lucy T. Smith.Published as part of Sâm, Lý Ngọc, Baker, William J., Bellot, Sidonie, Dransfield, John, Eiserhardt, Wolf L. & Henderson, Andrew, 2023, Truongsonia (Arecaceae: Arecoideae: Truongsonieae)-a new palm genus and tribe from Vietnam, pp. 201-212 in Phytotaxa 613 (3) on page 208, DOI: 10.11646/phytotaxa.613.3.1, http://zenodo.org/record/834641
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