AFRICAN

ORCHIDS

Platycoryne pervillei Rchb.f., Bonplandia (Hannover) 3: 212 (1855).
Heterotypic Synonyms:
Habenaria depauperata Kraenzl., Abh. Naturwiss. Vereine Bremen 7: 259 (1882).
Habenaria pervillei Kraenzl., Bot. Jahrb. Syst. 16: 209 (1893).
Habenaria tenuicaulis Rendle, J. Linn. Soc., Bot. 30: 396 (1895).
Habenaria buchwaldiana Kraenzl., Bot. Jahrb. Syst. 24: 503 (1898).
Platycoryne tenuicaulis (Rendle) Rolfe in D.Oliver & auct. suc. (eds.), Fl. Trop. Afr. 7: 257 (1898).
Habenaria flammea Kraenzl., Bot. Jahrb. Syst. 28: 173 (1900).
Description:
A terrestrial herb 3-7 dm. high, glabrous except for the roots; tubers ellipsoid, 1-2.5 cm. long, 5-10 mm. in diameter, tomentose. Stem erect, often somewhat flexuous, slender, with leaves scattered along its length. Leaves 5-8, the lowermost often reduced to a sheath, lower ones somewhat spreading, the upper adpressed to the stem, all lanceolate or narrowly lanceolate, acute, the largest 2.5-8 cm. long, 5-10 mm. broad. Inflorescence 1-5.5 cm. long, 2.5-5 cm. in diameter, rather closely 2-8-flowered. Bracts lanceolate, acuminate, 7-21 mm. long, shorter than the pedicel with ovary. Flowers suberect or curving outwards, yellow to bright or deep orange; pedicel with ovary slightly curved, 1.5-2.5 cm. long. Dorsal sepal erect, very convex, forming a hood with the petals, broadly ovate, acute, 10-14 mm. long, 7-9 mm. broad; laterals deflexed, very obliquely lanceolate, acute, 10.5-12.5 mm. long, ± 3 mm. broad. Petals erect, adherent to the dorsal sepal, much curved, lanceolate-linear or lanceolate-ligulate, acute, 8-12 mm. long, ± 2 mm. broad. Lip projecting forwards, upcurved in front, ligulate, fleshy, 7—11 mm. long, ± 2 mm. broad; spur dependent, swollen in the apical half or third, 12-19 mm. long. Anther erect, long-apiculate, 4.5-6.5 mm. high, canals porrect, 3.5-5 mm. long. Stigmas horizontal just above the lip, shortly club-shaped, rounded, ± 3 mm. long; rostellum placed in front of the anther, ± 4 mm. high, 3-lobed in the upper half, the middle lobe narrowly triangular, acute, ± 2 mm. long, the side lobes porrect, much narrowed from base to apex.
Habitat:
In marshes. humid woods: common in the Ambongooina sector to the east.
Phenology:
Flowering in January-April
Cultivation:
Not in cultivation.
Distribution:
Kenya to S. Trop. Africa, NW. Madagascar
References:
Flora of Tropical East Africa Summerhayes Orchidaceae Part 1 1968; Flora Zambesiaca Vol 11, Part 1, (1995) Author: I. la Croix and P.J. Cribb; ORCHIDS OF Bvumbwe I. F. LA CROIX, The Society of Malawi Journal, Vol. 36, No. 2 (1983), pp. 12-18; African Orchids: XXV V. S. Summerhayes, Kew Bulletin, Vol. 13, No. 1 (1958), pp. 57-87+ii; THE ORCHIDS OF MALAŴI Brian Morris, The Society of Malawi Journal, Vol. 35, No. 2 (1982), pp. 7-23; Flora of Madagascar: vascular plants: 49th family, Orchids / by H. Perrier de La Bathie; published under the auspices of the government of Madagascar and under the direction of H. Humbert; English revision and translation by Steven D. Beckman
Images:
Click on each image to see a larger version.

Habitat/In situ Habitat/In situ Habitat/In situ
Platycoryne pervillei 01 Platycoryne pervillei 02 Platycoryne pervillei 03
Photograph© Warren
McCleland. Image used
with kind permission.
Photograph© Warren
McCleland. Image used
with kind permission.
Photograph© Warren
McCleland. Image used
with kind permission.