Mystacidium Lindl.
  • Lindl., Companion Bot. Mag. 2: 205 (1837)


This is a synonym of Angraecinae Summerh.

General Description

Sepals and petals subequal, free, spreading or subconnivent. Lip affixed to the base of the column and continuous with it, produced at the base into a short or somewhat elongate spur; side lobes small, or obsolete, at the sides of the spur; limb spreading or erect, generally entire. Column very short, broad, concave in front, without wings and footless; clinandrium truncate, entire. Anther terminal, operculate, incumbent, convex, often produced in front, scarcely 2-celled; pollinia 2, globose, sulcate, situated upon a pair of slender stipites, which are attached to separate oblong or squamiform glands. Capsule oblong or fusiform. —Epiphytic herbs. Stems leafy, short or elongated, not thickened into pseudobulbs. Leaves distichous, coriaceous or fleshy, articulated to a persistent sheath. Peduncles lateral, simple. Flowers generally small or medium-sized, racemose or solitary. Bracts usually small.

Dwarf or small monopodial epiphytic herbs.Stems short, covered by imbricate sheathing leaf bases.Leaves distichous, fleshy or coriaceous, articulated to the sheathing leaf bases.Inflorescences axillary, few- to several-flowered; peduncle slender, wiry.Flowers white, pale green or pale yellow.Sepals and petals free, subequal; lip entire or 3-lobed, spurred, usually ecallose; spur wide-mouthed, tapering.Column short; rostellum pendent, 3-lobed, the outer lobes papillate and much longer than the mid-lobe; pollinia 2, globose, sulcate; stipites 2, linear, slender; viscidia 2.

Dwarf or small monopodial epiphytic herbs. Stems short, covered by imbricate sheathing leaf-bases. Leaves distichous, fleshy or coriaceous, articulated to sheathing leaf-bases. Inflorescences axillary, 2–several-flowered; peduncles slender, wiry. Flowers small to medium-sized, white, pale green or pale yellow. Sepals and petals free, subequal, spreading or subconnivent. Lip entire or 3-lobed, spurred at the base, usually ecallose; spur tapering from a broad mouth. Column short; rostellum pendent, 3-lobed, with outer lobes much longer than the mid-lobe and papillate; pollinia 2, globose, sulcate; stipites 2, linear, slender; viscidia 2, rarely adherent, oblong or squamiform.

Epiphytic herbs. Stem covered by imbricate, sheathing leaf-bases. Leaves distichous, coriaceous, articulated to a sheathing leaf-base. Inflorescence axillary, spreading to pendent, two- to many-flowered; peduncle wiry. Flowers usually stellate, white, pale green, or pale yellow. Sepals and petals free, subequal, spreading or subconnivent. Labellum entire or trilobed, spurred at base, ecallose; spur tapering from a broad mouth. Column with two pollinia, globose, sulcate, stipes two, linear, viscidia two, rarely adherent, oblong or squamiform; rostellum pendent, trilobed, outer lobes often much longer than midlobe and papillose.

{i}Sepals{/i} and {i}petals{/i} subequal, free, spreading or subconnivent. {i}Lip{/i} affixed to the base of the column and continuous with it, produced at the base into a short or long spur; side lobes small or obsolete, situated at the sides of the spur; limb spreading or erect, generally entire. {i}Column{/i} very short, broad, concave in front, without wings and footless; anther-bed truncate, entire. {i}Anther{/i} terminal, operculate, incumbent, convex, often produced in front, scarcely 2-celled; pollinia 2, globose, sulcate, situated upon a pair of slender stipites, which are attached to separate oblong or squamiform glands. {i}Capsule{/i} oblong or fusiform.

Morphology

Schill and Pfeiffer (1977) studied the pollen of M. capense and compared it to that of Angraecum with no further details.

Ecology

Species are epiphytes in evergreen forests and woodlands. The East African species are found in forests and woods from 1300 up to 2500 m elevation. Mystacidium tanganyikense Summerh. has been found in flower growing on the cones of Cupressus L. (Cupressaceae) and also on the native Juniperus procera (Hochst.) ex Endl. (Cupressaceae).

Distribution

Mystacidium is a genus of 15 species mainly in southern, Central and East Africa as far north as Tanzania.

Uses

There are no recorded ethnobotanical uses of the species, but many are cultivated in specialist collections, usually mounted on slabs.

Literature

Benth. et Hook. f. Gen. Pl. iii. 584.

in Companion Bot. Mag. 2: 206 (1837). —Rolfe in F.C. 5, 3: 75 (1912). —Senghas in Schlechter, Die Orchideen, ed. 3: 1120 (1986).

in Hook., Comp. Bot. Mag. 2: 206(1836); Rolfe in FI. Cap. 5(3): 75 (1912); Senghas in Schltr., Die Orchideen, ed. 3: 1120 (1986)

Distribution Map

 
  • Native distribution
Found in
  • Africa East Tropical Africa Tanzania
  • South Tropical Africa Malawi
  • Mozambique
  • Zambia
  • Zimbabwe
  • Southern Africa Cape Provinces
  • KwaZulu-Natal
  • Northern Provinces
  • Swaziland

  Bibliography

  • 1 Govaerts, R. (2003). World Checklist of Monocotyledons Database in ACCESS: 1-71827. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • 2 Pridgeon, A.M., Cribb, P.J., Chase, M.W. & Rasmussen, F.N. Genera Orchidacearum: Volume 6. Epidendroideae (Part Three). (Oxford University Press: 2014).
  • 3 Lindley, J. Original publication of Mystacidium. 2, (1837).

 Information From

Flora of Tropical Africa
http://apps.kew.org/efloras/
Flora of Tropical Africa. Published on the Internet; http://apps.kew.org/efloras/
Flora Zambesiaca
http://apps.kew.org/efloras/
Flora Zambesiaca. Published on the Internet; http://apps.kew.org/efloras/
Flora of Tropical East Africa
http://apps.kew.org/efloras/
Flora of Tropical East Africa. Published on the Internet; http://apps.kew.org/efloras/
Flora Capensis
http://apps.kew.org/efloras/
Flora Capensis. Published on the Internet; http://apps.kew.org/efloras/
WCS higher taxonomy
  • E All Rights Reserved
World Checklist of Selected Plant Families
http://apps.kew.org/wcsp/
WCSP 2014. 'World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://apps.kew.org/wcsp/ Retrieved 2011 onwards
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