AFRICAN

ORCHIDS

Diaphananthe liae Eb.Fisch., Killmann, J.-P.Lebel & Delep., Orchidee (Hamburg) 62: 442 (2011).
Description:
Epiphytic orchid with short stem and many roots in lower part, roots up to 0.4 cm in diameter stems pendent to erect, up to 0.5 cm long. Leaves distichous, falcate, linear to obovate, unequally bilobed at apex, (6) 8 cm long and (1.2) 1.5 (1.7) cm wide. Inflorescences 3, with up to 8 flowers, 7-16 cm long. Bracts amplexicaulous, up to 0.25 cm long. Flowers emerald green becoming yellow at late anthesis, up to 0.8-1 cm in diameter, dorsal sepal ovate, 0.35 x 0.25 cm, lateral sepals lanceolate, obtuse, 0.48 x 0.28cm, petals oblong to obovate, 0.35 x 0.12-0.15 cm, lip entire, ovate, laterally only slightly compressed, margin entire, 0.4 x 0.3 cm, spur clavate, incurved, sigmoid, up to 2.1-2.4 cm long and 0.1-0.12 cm wide, ovary 0.8-0.9 cm long, gynostemium 0.3 cm long, 0.2 cm high and 0.25 cm wide. Flowering season February to March.
Etymology:
This species is dedicated to the memory of Lia Packet (1932-1989) wife of Gilbert Delepierre.
Habitat:
It is growing as epiphyte between 1900 and 3000 m.
Cultivation:
As given for the genus.
Notes:
The species is similar to Diaphananthe rohrii and Diaphananthe bueae but differs in the emerald green flowers and the distinctly longer sigmoid spur. It differs from Diaphananthe rohrii in the larger sepals and petals, and the larger lip. It differs from Diaphananthe bueae in the smaller sepals and petals, and the smaller lip.
Distribution:
Rwanda
References:
WCSP (2017). 'World Checklist of Selected Plant Families. 25.02-2017; http://apps.kew.org/wcsp/
Images:
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Diaphananthe lecomtei (Finet) P.J.Cribb & Carlsward, Phytotaxa 71: 45 (2012).
Homotypic Synonyms:
Listrostachys lecomtei Finet, Mém. Soc. Bot. France 9: 54 (1907).
Chamaeangis lecomtei (Finet) Schltr., Beih. Bot. Centralbl. 36(2): 108 (1918).
Description:
Small plants with more imbricate, non-fleshy leaves, Inflorescence not fasciculate, One flower at each node of the inflorescence, Lip entire or slightly 3-lobed in the middle, never 3-toothed or 3-lobed at the apex, Lip up to 1.2 mm long, Spur more than 9 mm, Swollen part of the spur globular, Swollen part of the spur more than 2 mm wide,
Habitat:
?
Cultivation:
As given for the genus.
Distribution:
W. & WC. Trop. Africa
References:
African Orchids in the Wild and Cultivation La Croix 1997; WCSP (2017). 'World Checklist of Selected Plant Families. 26.02-2017; http://apps.kew.org/wcsp/
Images:
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Diaphananthe Group 2
Description:
Flowers alternate, stems short, to 15 cm long in mature plants, or shorter; leaves in a rosette or crowded at the apex of the stems.
Species:

Diaphananthe bueae (Schltr.) Schltr. Ivory Coast to Uganda.
Diaphananthe ceriflora J.B.Petersen Cameroon to Gabon.
Diaphananthe divitiflora (Kraenzl.) Schltr, Cameroon, Zaïre.
Diaphananthe dorotheae (Rendle) Summerh. S. Nigeria.
Diaphananthe garayana Szlach. & Olszewski Cameroon.
Diaphananthe millarii (Bolus) H.P.Linder SE. Cape Prov. to KwaZulu-Natal.
Diaphananthe pellucida (Lindl.) Schltr. W. Trop. Africa to Uganda.
Diaphananthe plehniana (Schltr.) Schltr. Ivory Coast to Gabon.
Diaphananthe rohrii (Rchb.f.) Summerh. Trop. Africa.
Diaphananthe sanfordiana Szlach. & Olszewski Cameroon.
Diaphananthe suborbicularis Summerh. Ghana.

World Checklist of Monocotyledons. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/monocots/ accessed 27.02-2017

Diaphananthe Group 3

Description:
Flowers alternate; stems elongated, at least 20 cm in mature plants, leafy along most of their length.
Species:

Diaphananthe bidens (Afzel. ex Sw.) Schltr. W. Trop. Africa to Uganda and Angola
Diaphananthe eggelingii P.J.Cribb SW. Uganda.
Diaphananthe lorifolia Summerh. NE. & E. Trop. Africa.
Diaphananthe sarcorhynchoides J.B.Hall Ivory Coast, Ghana, Gabon.
Diaphananthe subclavata (Rolfe) Schltr. Bioko, São Tomé.
Diaphananthe trigonopetala Schltr. Cameroon.

World Checklist of Monocotyledons. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the Internet; http://www.kew.org/wcsp/monocots/ accessed 27.02-2017