Dypsis schatzii Beentje, Palms Madagascar : 278 (1995)

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Content

Introduction

  • This is a very handsome small undergrowth palm; it is named for the collector of the type, George Schatz of Missouri Botanical Garden, who has worked with us in the field, often helping greatly with logistic arrangements. (Dransfield, J. & Beentje, H. 1995: The Palms of Madagascar)A

Distribution

E Madagascar; only known from Betampona. (Dransfield, J. & Beentje, H. 1995: The Palms of Madagascar)A

Diagnosis

  • D. integraesimilis sed statura robustiore foliis majoribus inflorescentia ramosa triadibus confertim dispositis differt. (Dransfield, J. & Beentje, H. 1995: The Palms of Madagascar)A

Biology And Ecology

  • Lowland rain forest, steep mid slope; 500-565 m. (Dransfield, J. & Beentje, H. 1995: The Palms of Madagascar)A

Conservation

  • Vulnerable. Only known from a single site; numbers estimated to be less than fifty. (Dransfield, J. & Beentje, H. 1995: The Palms of Madagascar)A

Common Name

  • Tsinkara (Betsimisaraka). (Dransfield, J. & Beentje, H. 1995: The Palms of Madagascar)A

Uses

  • Stems used to make blowpipes. (Dransfield, J. & Beentje, H. 1995: The Palms of Madagascar)A

Description

  • Solitary or clustering palm. STEM(S) 2-3 m tall, to 1 cm diam.; internodes 2-6 cm long, distally with dense reddish scales, often with sheath remnants clothing the stem in its distal part. LEAVES 6-13 in the crown, entire or with 2 pinnae; sheath 8-12 cm long, dense reddish scaly, closed, with triangular auricles 0.6-1.2 cm long; petiole absent or up to 10 cm long, distally c. 2 mm wide, densely scaly; lamina dark green, when entire obovate, 17.5-41 cm long, 6.8-11 cm wide, with lobes 2.6-7 cm long; main veins 11-13, faint, only the midrib prominent; apices long-dentate, the teeth continuing along the outer margins to about halfway down the leaf, the teeth to 1 cm long, rarely a deep lacuna almost reaching the midrib; midrib densely scaly, minor veins with bands of scattered scales abaxially, as well as white-punctate abaxially which gives the abaxial side a silvery appearance; when pinnate with a rachis 18-22 cm long, leaflets 2 on each side of the rachis, the proximal 9-10 x 1.1-1.7 cm, acuminate, leaflet interval 2-3 cm, distal leaflets obovate 17-24 cm long, c. 7 cm wide, with 3-5 main veins, connate for > 80%. INFLORESCENCE interfoliar, branched to 1 order; peduncle 28-31 cm long, distally 1.5-2 mm diam., densely reddish-scaly; prophyll 18-21 cm long, 6-7 mm wide, borne at c. 4 cm above the base of the peduncle, opening in the distal 1.5-2 cm, with scattered scales; peduncular bract inserted 14-18 cm from the base of the peduncle, 9-11 cm long, opening in the distal few cm, with scattered scales; non-tubular peduncular bracts 2-3 mm long, sometimes almost tubular; rachis 1-5 cm long, beige in fruit, with 3-6 first order branches; rachillae 6.5-13 cm long, minutely puberulous with reddish stellate scales and dense triads; rachilla bract 0.6-0.8 mm, rounded. STAMINATE FLOWERS with sepals 1.1-1.4 x 0.6-1.6 mm, the middle one very asymmetrical; petals 1.6-2 x 1.2-1.4 mm; stamens 6, slightly biseriate (offset < 0.1 mm), filaments reflexed rachilla 2.5-3.5 cm long. The sepals are c. 0.7 mm long, and the stamens seem to be didymous;the plant is in young bud, so we are unable to reach a conclusion as to its identity. (Dransfield, J. & Beentje, H. 1995: The Palms of Madagascar)A

Materials Examined

  • Toamasina: Betampona, Dec. 1925 (bud), Perrier 17467 (P); idem, April 1989 (fr.), Schatz et al. 2687 (Holotype K; isotype MO, not seen); idem, Oct. 1991 (bud), Beentje 4487 (K, TAN). (Dransfield, J. & Beentje, H. 1995: The Palms of Madagascar)A

Bibliography

    A. Dransfield, J. & Beentje, H. 1995: The Palms of Madagascar