AFRICAN

ORCHIDS

Ceratandra venosa (Lindl.) Schltr., Bot. Jahrb. Syst. 24: 433 (1897).
Homotypic Synonyms:
Pterygodium venosum Lindl., Gen. Sp. Orchid. Pl.: 367 (1839).
Corycium venosum (Lindl.) Rolfe in W.H.Harvey & auct. suc. (eds.), Fl. Cap. 5(3): 283 (1913).
Evota venosa (Lindl.) Schelpe, Contr. Bolus Herb. 10: 161 (1982).
Description:
Tubers several, cylindrical, closely woolly; stem erect, 15-22 cm. high, closely leafy; lower leaves obovate or lanceolate, 1-2 cm. long, upper longer (2,5-5 cm.) narrower acuminate; spike cylindrical, densely many-fl., bracts linear acuminate a little shorter than the flowers; flowers about 1 cm. long and wide; side sepals broadly ovate or suborbicular emarginate, very concave, spreading; odd sepal narrower obtuse; petals fan-shaped cuneate, incurved spreading, the upper margin irregularly toothed, a little wider than the sepals; lip somewhat orbicular, concave crenulate, bearing a subulate tubercle towards the base, appendage erect fleshy bipartite, the segments flattened hornlike obtuse curved; column bilobed, cells of the anther situate on the exterior margin of either ear-like lobe, erect, glands of the pollinia uppermost, near the summit; stigmas 2; ovary cylindrical.
Notes:
Colour of the sepals green and dull purple; petals delicate clear rose, sometimes striped; lip pale green at base, the tubercle bright emerald-green, tipped with rosy stripes near the margin; appendage whitish, rosy at base; anther deep red-brown.
Habitat:
It should be searched for amongst quartz rocks, or in quartzose sand.
Distribution:
SW. Cape Prov.

Ceratandra harveyana Lindl., Gen. Sp. Orchid. Pl.: 365 (1838).
Homotypic Synonyms:
Evota harveyana (Lindl.) Rolfe in W.H.Harvey & auct. suc. (eds.), Fl. Cap. 5(3): 269 (1913).
Heterotypic Synonyms:
Ceratandra affinis Sond., Linnaea 19: 108 (1846).
Evota affinis (Sond.) Rolfe in W.H.Harvey & auct. suc. (eds.), Fl. Cap. 5(3): 270 (1913).
Description:
An erect glabrous herb, 7-17 cm. high; stem flexuous, remotely leafy, the leaves erect linear-lanceolate, acute or acuminate, loosely sheathing at base, 1,5-3 cm long, the radical ones 3-7, linear, attaining 3 cm. in length; spike somewhat densely 3-11 fl., the flowers erect-spreading; bracts herbaceous, broadly ovate, acuminate or acute, shorter than or more rarely as long as the ovary; lateral sepals spreading concave oblong-obovate, 1-1,2 cm. long; odd sepal resupinate concave lanceolate obtuse, loosely cohering with the petals, as long as the lateral sepals; petals clawed, the limb obliquely rotundate, margin crenulate, as long as the odd sepal; limb of the lip deltoid-hastate acute, tuberculate above, 0,4 cm. long, the appendix much larger, contracted at the base and somewhat quadrate, dilated upwards into two arms, reflexed at the apex into two wide folds covering the stigma; arms of the rostellum broad auriculate; stigma bilobed; ovary 1-1,2 cm. long.
Habitat:
In fynbos in sandy, wet soils and flower only after a fire sweeps the grassland at elevations of 50 to 650 meters.
Phenology:
Flowering from November to December - mostly after fire
Distribution:
SW. Cape Prov.
References:
Flora Capensis, Vol 5, Part 3, page 3, (1913) Author: (By R. A. ROLFE.); The phylogeny and evolution of the Pterygodium—Corycium complex (Coryciinae, Orchidaceae) H. Kurzweil, Plant Systematics and Evolution, Vol. 175, No. 3/4 (1991), pp. 161-223; Wild Orchids of Southern Africa Stewart, Linder, Schelpe & Hall 1982; Orchids of Southern Africa Linder & Kurzweil 1999
Images:
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Habitat/In situ
Ceratandra harveyana 01
Photograph© Hermanus
Botanical Society, Fernkloof.
Image used with kind
permission.





















Ceratandra globosa Lindl., Gen. Sp. Orchid. Pl.: 364 (1838).
Homotypic Synonyms:
Ceratandropsis globosa (Lindl.) Rolfe in W.H.Harvey & auct. suc. (eds.), Fl. Cap. 5(3): 267 (1913).
Heterotypic Synonyms:
Ceratandra parviflora Lindl., Gen. Sp. Orchid. Pl.: 364 (1838).
Description:
An erect slender glabrous herb, 15-30 cm. high; stem straight leafy, the leaves erect-spreading linear-lanceolate, long acuminate, semi-amplexicaul, 2-6 cm. long, the radical ones 10-30, linear or linear-filiform, up to 5 cm. long; spike dense subglobose, 6-12 fl., the flowers suberect; bracts leaf-like lanceolate, long acuminate, as long as the ovary; lateral sepals ascending concave ovate subacute, 0,6 cm. long; odd sepal suberect concave lanceolate subacute, slighting cohering with the petals, as long as the lateral sepals; petals shortly clawed, the lamina obliquely broadly ovate, the anterior margin slightly undulate; lip clawed, the claw deflexed oblong, the lamina erect subreniform, sometimes auriculate, 0,5 cm. long; arms of the rostellum erect-incurved; anther pendent; ovary cylindrical, 0,8-1 cm. long.
Habitat:
Distribution:
SW. & S. Cape Prov.

Ceratandra grandiflora Lindl., Gen. Sp. Orchid. Pl.: 364 (1838).
Homotypic Synonyms:
Ceratandropsis grandiflora (Lindl.) Rolfe in W.H.Harvey & auct. suc. (eds.), Fl. Cap. 5(3): 267 (1913).
Description:
An erect glabrous herb, 15-35 cm. high; stem straight or subflexuous, leafy, the leaves erect linear-lanceolate acuminate, amplexicaul at base, 2-6 cm. long, the radical ones numerous, linear or linear-filiform, 1,5-4 cm. long; spike subglobose or ovate, densely many-flowered, the flowers erect-spreading inverted; bracts leaf-like linear-lanceolate acuminate, as long as the ovary or shorter; lateral sepals ascending concave, obliquely ovate, acute, 1-1,2 cm. long; odd sepal loosely cohering with the petals, spreading lanceolate, acute or acuminate, as long as the lateral ones; petals concave clawed, the lamina obliquely and broadly ovate, obtuse or acute, auriculate at the base on the exterior side, 1,1-1,3 cm. long; lip clawed, the claw deflexed oblong, 0 ,5 cm. long, the lamina somewhat reniform, acute or obtuse, auriculate on each side at the base, tuberculate above, 0,1 cm. long; arms of the rostellum erect-incurved, 0,3 cm. long; ovary 0,9-1,4 cm. long.
Habitat:
At elevations of sea-level to 450 meters.
Distribution:
S. Cape Prov.
References:
Flora Capensis, Vol 5, Part 3, page 3, (1913) Author: (By R. A. ROLFE.); THE EVOLUTION OF BEETLE POLLINATION IN ASOUTHAFRICAN ORCHID American Journal of Botany 85(9): 1180–1193. 1998; American Journal of Botany 85(9): 1180–1193. 1998; Orchids of Southern Africa Linder & Kurzweil 1999
Images:
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Habitat/In situ
ceratandra grandiflora
Photograph Karl Senghas©
Swiss Orchid Foundation at
the Herbarium Jany Renz
Image used with kind
permission.
























Ceratandra bicolor Sond. ex Bolus, J. Linn. Soc., Bot. 20: 487 (1884).
Homotypic Synonyms:
Evota bicolor (Sond. ex Bolus) Rolfe in W.H.Harvey & auct. suc. (eds.), Fl. Cap. 5(3): 269 (1913).
Heterotypic Synonyms:
Ceratandra harveyana Sond., Linnaea 19: 108 (1846), nom. illeg.
Description:
An erect glabrous herb, 7-23 cm. high; radical leaves 5-10, erect linear acute, 1,5-3,5 cm. long; stem flexuous, distantly leafy, the leaves erect-spreading linear-lanceolate acute, loosely sheathing at base, gradually passing off into the bracts, 1-3 cm. long; spike laxly l-9 fl. (usually 2-4fl.), the flowers erect-spreading; bracts herbaceous, broadly ovate, much shorter than the ovary; lateral sepals spreading-deflexed concave ovate obtuse, 1-1,2 cm. long; odd sepal resupinate lanceolate, loosely cohering with the petals, as long as the lateral sepals; petals resupinate concave, obliquely cuneate obovate, crenulate on the upper widened margin, as long as the odd sepal; limb of the lip tuberculate above in the middle, unguiculate, the lamina somewhat lunate, the lateral lobes ascending, crenulate, 1 cm. long, appendix deeply bifid, the segments erect-incurved linear, acute or obtuse, 0,1-0 8 cm. long; ovary 0,9-1,2 cm. long.
Habitat:
In fynbos at elevations around 90 to 1000 meters.
Distribution:
SW. Cape Prov.

Images:
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Image Flower Details Flower Details Flower Details Flower Details Botanical Drawing / Herbarium
ceratandra bicolor 02 ceratandra bicolor close up ceratandra bicolor close up 02 ceratandra bicolor close up 03 ceratandra bicolor close up 04 ceratandra bicolor
Photograph copyright P.Linder Image used with kind permission. Photograph copyright P.Linder Image used with kind permission. Photograph copyright P.Linder Image used with kind permission. Photograph copyright P.Linder Image used with kind permission. Photograph copyright P.Linder Image used with kind permission. Photograph copyright Swiss Orchid Foundation at the Herbarium Jany Renz Image used with kind permission.