Dypsis mocquerysiana

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Dypsis (DIP-sis)
mocquerysiana
(mok-kwehr-rih-see-AHN-nah)
D83dba07-5fd0-441b-98b5-536d5da9653a.jpg
Sahavalory, near Ambodivohangy, Toamasina, Madagascar. Photo by Dr. William J. Baker, Royal Botanic Gardens, Kew/Palmweb.
Scientific Classification
Genus: Dypsis (DIP-sis)
Species:
mocquerysiana
(mok-kwehr-rih-see-AHN-nah)
Synonyms
None set.
Native Continent
Africa
Africa.gif
Morphology
Habit: Solitary & clustering.
Leaf type: Entire bifid or four blades.
Culture
Survivability index
Common names
None.

Habitat and Distribution

Endemic to Northeast Madagascar: Masoala and Mananara Avaratra. Lowland rain forest,
Farankaraina - Masoala - East Coast of Madagascar. Photo by "Olivier Reilhes".
usually in humid valley bottoms; alt. 50-400 m.

Description

Slender solitary (or clustering, fide Jumelle) palm of the forest undergrowth, not exceeding 2 m tall. STEM 7-9 mm in diam.; internodes, about 7 mm in diam., stem surface with scattered caducous scales. LEAVES 4-8 in the crown, tending to be held ± horizontally; sheath to 10 cm long, 1 cm in diam., densely covered with thick caducous dark brown indumentum, the sheath mouth sometimes with two short irregular triangular auricles (1-3 cm, fide Jumelle 1923); petiole absent or very short, not exceeding 6 cm long, about 4 x 3 mm in section, densely covered in caducous dark brown indumentum as the sheath; rachis (or costa) 8-19 cm long, tapering along its length, bearing caducous dark brown indumentum as the petiole; blade entire bifid or with 2 broad leaflets on one or both sides of the rachis; blade to 50 cm long, bifid for 50% to almost 80% of the length, the two lobes (or apical lobes) diverging from the rachis at an angle of about 10-15°, held flat or ± cucullate, somewhat plicate, to 30 x 3.5-5.5 cm, adaxially glabrous, abaxially with minute, scattered punctiform dark brown scales and a few bands of caducous laciniate scales, and usually with conspicuous dark ramenta on major veins, 2-5 mm long. INFLORESCENCE protandrous, erect at anthesis, held above the leaves, bent down in fruit, branching to 1-2 orders; peduncle 17-37 cm long, about 1.5-3 mm in diam., bearing abundant caducous chocolate-brown laciniate scales when young in exposed parts; prophyll sometimes borne 2-3 cm above base of peduncle, 9-18 x 0.4-0.8 cm, very sparsely scaly; peduncular bract borne 2-5 cm above the prophyll, 17-27 x 0.7-0.8 cm, similar to prophyll; rachis usually elongate, 9-22 cm long, bearing numerous short first-order branches, the basal few branched further to the second order, the whole branching portion of the inflorescence ± narrow rectangular in outline, axes sparsely to very densely covered in shaggy dark brown scales; rachillae usually numerous (about 90), short, rarely exceeding 4 cm long, about 1 mm in diam., surface covered with minute punctiform scales and larger shaggy dark brown scales; triads 1-1.5 mm distant; rachilla bracts about 0.5-1 mm, triangular, entire or long laciniate. STAMINATE FLOWERS about 0.7-1 mm in diam.; sepals 0.5-0.7 mm long, irregularly triangular or rounded, keeled, margins entire, or laciniate; petals 0.8 x 0.5 mm, striate; stamens 3, antepetalous, filaments 0.2 x 0.1 mm, basally connate in a ring with staminodes, anthers about 0.2 mm, didymous, staminodes clublike, about 0.1 mm; pistillode a low dome. PISTILLATE FLOWERS about 1.5 mm in diam.; sepals imbricate, about 0.5 mm, margins laciniate; petals triangular, 1.3 x 1 mm, striate; staminodes 6, irregularly dentiform, minute; ovary (post anthesis) about 1.5 mm in diam.. Mature FRUIT bright red, 13 x 5.5 mm, epicarp shiny, mesocarp thin fleshy, endocarp thin with few scattered longitudinal fibres. SEED 11 x 4 mm; endosperm homogeneous; embryo lateral near the base. (J. Dransfield and H. Beentje. 1995)/Palmweb. Editing by edric.

Culture

Warm, sheltered and moist. Cold Hardiness Zone: 10a

Comments and Curiosities

An attractive small solitary palm of the undergrowth of very humid rain forests in the lowlands surrounding the Bay of Antongil. D. mocquerysiana has been grown at Kew since 1986, where it flowers regularly. (J. Dransfield and H. Beentje. 1995)/Palmweb.

Conservation: Vulnerable. Occurs in a restricted area, where shifting cultivation is increasing. (J. Dransfield and H. Beentje. 1995)/Palmweb.


External Links

References

Phonetic spelling of Latin names by edric.

Special thanks to Geoff Stein, (Palmbob) for his hundreds of photos.

Special thanks to Palmweb.org, Dr. John Dransfield, Dr. Bill Baker & team, for their volumes of information and photos.

Glossary of Palm Terms; Based on the glossary in Dransfield, J., N.W. Uhl, C.B. Asmussen-Lange, W.J. Baker, M.M. Harley & C.E. Lewis. 2008. Genera Palmarum - Evolution and Classification of the Palms. Royal Botanic Gardens, Kew. All images copyright of the artists and photographers (see images for credits).

Dransfield, J. & Beentje, H. 1995. The Palms of Madagascar. Royal Botanic Gardens, Kew and The International Palm Society.


Many Special Thanks to Ed Vaile for his long hours of tireless editing and numerous contributions.

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