Dypsis concinna

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Dypsis (DIP-sis)
concinna (KOHN-seen-nah)
P1010211 Dypsis concinna.JPG
Habitat, Photo by Phil Arrowsmith.
Scientific Classification
Genus: Dypsis (DIP-sis)
Species:
concinna (KOHN-seen-nah)
Synonyms
None set.
Native Continent
Africa
Africa.gif
Morphology
Habit: Solitary & clustering.
Leaf type: Pinnate
Culture
Survivability index
Common names
None.

Habitat and Distribution

Endemic to Madagascar. Zahamena and the Moramanga/ Mantady area. Submontane rain forest,
Habitat, Photo by Phil Arrowsmith.
often with much bamboo; gentle slopes or ridge tops; alt. 800-1120 m.

Description

Solitary or clustering palm. STEMS to 2 m high, 5-8 mm in diam., erect or leaning, internodes 1-5 cm, densely to sparsely scaly with red-brown scales; nodal scars c. 1 mm. LEAVES 5-12 in the crown, porrect, within one population pinnate or entire (in Beentje 4535), shiny rich green; sheath 7-11 cm long, closed, densely to sparsely scaly with long laciniate reddish scales, with small auricles to 5 mm high and with laciniate-scaly margins; petiole absent or up to 3 cm long (to 9 cm in some entire leaves), 2-3 mm in diam., with scattered scales; rachis 11-29 cm long, in mid-leaf 1.5-2 mm wide, densely pubescent or with scattered scales on all surfaces; lamina when entire 13-30 x 3-5.3 cm, the lobes 4.5-21 x 1.5-2.4 cm, dentate over a width of 0.6-1 cm, the margins occasionally with a lacuna of 50-95% of the width between midrib and margin, with minute glands on minor veins, with 4-5 main veins; when pinnate with 11-25 leaflets on each side of the rachis, irregular or in groups of 2-7, in one plane, the group interval 1-6 cm, the leaflet interval 0.3-0.8 cm, the proximal leaflets 1-7 x 0.2-0.7 cm, median 3.5-10 x 0.4-1.3 cm, distal 2.5-6 x 0.3-1.7 cm, main vein 1, with faint or clear scattered scales on minor veins and distally with larger marginal scales, apices unequally acute to attenuate, terminal pair joined for 0.2-2.3 cm, with 2-3 main veins and dentate over a width of 0.4-1.5 cm, rarely with a large leaflet (10-12 x 1-1.5 cm) among the normal ones, either proximal or median, connate for up to 3.5 cm with the midrib. INFLORESCENCE interfoliar, branched to 1 order (rarely with up to three bifurcate rachillae), arching; peduncle 12-28 cm long, 1.5-2 mm in diam. distally, glabrous or densely red-pubescent (only in JD6435); prophyll 7-22 cm long, 3-6 mm wide, with scattered scales, borne at 2-10 cm above the base of the peduncle, open for 1-3 cm at the apex; peduncular bract often quickly deciduous, inserted at 6-15 cm from the base of the peduncle, 4-9 cm long, 3-4 mm wide, with scattered scales, open for the distal 1-4 cm; rarely a non-tubular peduncular bract near the apex of the peduncle, 3-12 mm long; rachis absent or up to 10 cm long, with 2-9 rachillae (and occasionally with 1-3 more branched ones at the base of the rachis); rachillae 3-12 cm long, 1-1.5 mm in diam., glabrous, with distant superficial triads. STAMINATE FLOWERS with sepals 0.6-1.1 x 0.7-1.3 mm, the middle one sometimes very asymmetrical; petals 1.5-2 x 1.1-1.4 mm; stamens 6, biseriate (offset 0.1-0.2 mm), the filaments 0.6-0.8 mm, thin, with anthers 0.9-1.3 x 0.3-0.6 mm, parallel and dorsifixed; pistillode 0.5-0.8 mm high, 0.2-0.4 mm in diam., conical. PISTILLATE FLOWERS with sepals 0.8-1.3 x 0.8-1.8 mm; petals 2.3-3 x 1.7-3 mm; staminodes 6, 0.2-0.6 mm; pistil 2.2-2.3 x 1.2-1.8 mm. FRUIT red, ellipsoid, 6-16 x 3.5-7 mm, with fibrous endocarp, the fibres anastomosing little. SEED 5.5-8.5 x 3-4.5 mm, obtuse at both ends; endosperm homogeneous. (J. Dransfield and H. Beentje. 1995)/Palmweb. Editing by edric.

Culture

Cold Hardiness Zone: 10a

Comments and Curiosities

A species with very narrow leaves which is locally common over a fairly small area. JD has seen beautiful plants of this species in cultivation in Queensland; it is most decorative and appears to be easily cultivated. The name concinna is Latin for neat or pretty. (J. Dransfield and H. Beentje. 1995)/Palmweb.

Conservation: Vulnerable. Although the species is common at Analamazaotra, its distribution area is small. (J. Dransfield and H. Beentje. 1995)/Palmweb.

A small solitary or clustering palm from montane rainforests in central eastern Madagascar with thin stems to about 2 m (7 ft.) tall and glossy green, pinnate or occasionally entire leaves. Quite reminiscent of a Chamaedorea species, it is best suited for the understorey of the humid tropical garden. (RPS.com)


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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