AFRICAN

ORCHIDS

Neobolusia tysonii (Bolus) Schltr., Bot. Jahrb. Syst. 20(50): 5 (1895).
Homotypic Synonyms:
Brachycorythis tysonii Bolus, J. Linn. Soc., Bot. 20: 485 (1884).
Heterotypic Synonyms:
Brachycorythis junodiana Kraenzl., Vierteljahrsschr. Naturf. Ges. Zürich 60: 389 (1915).
Description:
Soft underground tuber. Slender, hairless, up to 45 cm high. Two relatively large soft flat leaves near base of stern, c 7 cm long x 1 cm wide; stem-leaves few, much smaller, widely spaced, grading into bracts. Axis wavy. Bracts erect, those at middle of raceme c 13 mm long, tapering to fine point. Flowers standing out from axis; perianth segments c. 7 mm long except for lip which is slightly longer, not lobed, its base boat-shaped, end much wider, flat. Sepals brownish, spreading; petals white; side petals arched behind column. No spur or pouch.
Habitat:
At elevations of 1200 to 2350 meters in montane marshy grasslands. This species blooms in summer.
Distribution:
S. Africa
References:
Wild Orchids of Southern Africa Stewart, Linder, Schelpe & Hall 1982; Orchids of Southern Africa Linder & Kurzweil 1999; Field Guide to the Orchids of Northern South Africa and Swaziland McMurty, Grobler, Grobler & Burns 2008;
Images:
Click on each image to see a larger version.

Habitat/In situ  Habitat/In situ  Habitat/In situ  Habitat/In situ  Habitat/In situ  Habitat/In situ 
Neobolusia tysonii, 01
 
 Neobolusia tysonii, 02 Neobolusia tysonii 03
 
 Neobolusia tysonii, 04  Neobulusia tysonii, 05 Neobolusia tysonii, 06
 
Photograph© Cameron
McMaster. Image used
with kind permission. 
Photograph© Cameron
McMaster. Image used
with kind permission. 
Photograph© Cameron
McMaster. Image used
with kind permission. 
Photograph© Cameron
McMaster. Image used
with kind permission. 
Photograph© Cameron
McMaster. Image used
with kind permission. 
Photograph© Cameron
McMaster. Image used
with kind permission. 

 

Neobolusia stolzii Schltr., Bot. Jahrb. Syst. 53: 482 (1915).
Description:
Plant 15-45 cm. high. Leaves 2-4, the lowest sheathing, the middle ones lanceolate or oblong-lanceolate, to 9 cm. long and 1.2 cm. broad, the uppermost similar to the bracts. Inflorescence up to 8-flowered, to 16 cm. long; bracts lanceolate, the lower ones longer than the flowers. Flowers with greenish sepals and whitish or purplish petals and lip, spreading; ovary, 7-10 mm. long. Sepals broadly lanceolate, acuminate, the laterals oblique 6-7.5 mm. long. Petals obliquely ovate, acute, ± 4.5 mm. long, the margins ciliate. Lip spathulate-oblong, apiculate, 6.5-7 mm. long, ± 4 mm. broad in front, with a large raised hairy callus in the lower centre. Column 2.5-3 mm. tall.
Habitat.
In open wet bog verge and wet upland grasslands at elevations of 1850 to 2600 meters.
Cultivation:
Not in cultivation, cool to cold growing terrestrial.
Distribution:
Tanzania to Zimbabwe
References:
Flora of Tropical East Africa Summerhayes Orchidaceae Part 1 1968; The Orchids of South Central Africa Williamson 1977; Genera Orchidacearum Volume 2 Part One Pridgeon, Cribb, Chase and Rasmussen 2001; Flora Zambesiaca Vol 11, Part 1, (1995) Author: I. la Croix and P.J. Cribb; New or Little Known Orchids from East Africa P. J. Cribb, Kew Bulletin, Vol. 34, No. 2 (1979), pp. 321-340; TYPE MATERIAL OF STOLZ'S AFRICAN ORCHIDACEAE CONSERVED AT THE NATURHISTORISKA RIKSMUSEET STOCKHOLM (s) Eric A. Christenson, Selbyana, Vol. 10, No. 1 (1987), pp. 63-64
Images:
Click on each image to see a larger version.

Habitat/In situ
neobolusia stolzii 15559152821 o
Photograph© Margaret
Westrop. Image used
with kind permission.

 

Neobolusia stolzii var. glabripetala Summerh., Kew Bull. 16: 255 (1962).
Description:

Petals not ciliolate on margin, otherwise similar to the typical variety.
Habitat:

Damp montane grassland amongst rocks on seepage slopes 1800-2300 m.
Distribution:

Zimbabwe (Mt. Inyangani)

Neobolusia stolzii var. stolzii
Description:

Petals ciliolate.
Habitat:

Damp montane grassland, seepage slopes amongst rocks 1800–2300 m.
Distribution:

Tanzania to Zambia

Neobolusia stolzii var. bombyliiflora P.J.Cribb, Kew Bull. 34: 321 (1979).
Description:
Differs from the typical form in having larger flowers and a much larger convex portion to the lip which also lacks the broad marginal fringe.
Habitat:
In grassland.
Distribution:
Tanzania