Dypsis integra

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Dypsis (DIP-sis)
integra (in-TEHG-rah)
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Ambodiriana reserve - Manompana, Madagascar. "Photo by Olivier Reilhes"
Scientific Classification
Genus: Dypsis (DIP-sis)
Species:
integra (in-TEHG-rah)
Synonyms
None set.
Native Continent
Africa
Africa.gif
Morphology
Habit: Clustering
Leaf type: Pinnate
Culture
Survivability index
Common names
None.

Habitat and Distribution

Endemic to Madagascar. East Coast, between Mananara Avaratra and Vangaindrano. Lowland
Madagascar. Photo by Dr. Mijoro Rakotoarinivo.
rain forest; alt. 50-300 m.

Description

Clustering palm. STEMS to 20 cm (Beentje 4515) to 2 m high, (Perrier 18047), 0.4-0.9 cm in diam., internodes 1-1.5 cm long, pale green with dense red- brown scales; nodal scars about 1 mm. LEAVES 8-10 in the crown, spreading; sheaths 4.3-6 cm long, open for about 50%, proximally pale reddish green, distally pale creamy green, with red laciniate scales, very dense distally, with narrowly triangular ligules 3-4 mm long at the base of the petiole; petiole 0.3-2 cm, 2-2.5 mm in diam., densely scaly; blade entire, narrowly obovate, 15-33 x 4-7 cm, acute at the base, the margins toothed in the distal third or half, rounded at the apex with a 3-17 mm deep notch, midrib prominent on both surfaces with laciniate scales, other veins faint with minute scattered scales in lines. INFLORESCENCE interfoliar, erect to spreading, unbranched; peduncle 12-15 cm long, 1.5-3 x 1.5 mm in diam., with scattered laciniate scales; prophyll 7-11 cm, borne at 2-3.5 cm above the base of the peduncle with about 2 mm wide wings, with a 2-sided lateral split in the distal few cm; peduncular bract inserted at 5-7 cm from the base of the peduncle, 7-12 cm long, with scattered scales, laterally split on one side in the distal 1-2 cm; rachilla 5-11 cm long, 1-2 mm in diam., with scattered scales, with slightly distant superficial triads; rachilla bracts entire, rounded, at the margins with reddish laciniate scales. STAMINATE FLOWERS with sepals 0.8-1 x 0.8-1 mm, keeled, gibbous, ciliolate to ciliate, with slightly connate base, membranous; petals 2-2.2 x 1-1.3 mm, elliptic, acute, striate, almost free; stamens 6, uniseriate, equal, filaments 0.8 mm long, connate at the base in a 0.2 mm high ring, anthers 1.5-1.6 x 0.5-0.6 mm, dorsifixed, the locules parallel and blunt; pistillode 1.2-1.3 x 0.3 mm. PISTILLATE FLOWERS only known from young bud, with sepals imbricate, 1.2- 1.3 x 1-1.5 mm, ciliate, rounded; petals valvate, 1.8 x 0.7 mm; ovary 1.6 x 0.7 mm; staminodes c.0.2 mm. FRUIT unknown. (J. Dransfield and H. Beentje. 1995)/Palmweb. Editing by edric.

This species is close to D. simianensis and more material might even show the species to be synonymous. Beentje 4515 differs from the type in the hairi greater in 4515) and the shape of the sheath (more open, and much wider in 4515) as well as in the leaf venation (transverse, sinuous veinlets clearly visible in 4515). (J. Dransfield and H. Beentje. 1995)/Palmweb.

Culture

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

Comments and Curiosities

The name is Latin for 'entire', since the leaf appears to be completely unlobed on the type, with a rounded apex. On close examination the leaf is seen to be slightly folded near the apex, with a small notch. (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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