Edit History
Summerhayesia zambesiaca P.J. Cribb [family ORCHIDACEAE]
Date Updated: 26 July 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 11, Part 2, (1998) Author: I. la Croix & P.J. Cribb
Names
Summerhayesia zambesiaca P.J. Cribb [family ORCHIDACEAE], in Kew Bull. 32: 185 (1977). —Ball, South. African Epiphyt. Orch.: 216 (1978). —la Croix et al., Orch. Malawi: 286 (1991). —Geerinck in Fl. Afr. Centr., Orchidaceae pt. 2: 505 (1992). TAB. 151. Type: Zambia, Ntumbachushi Falls, ii.1970, G. Williamson & Drummond 1981 (K, holotype; SRGH).
Summerhayesia genus novum, sp. 1 [family ORCHIDACEAE], of Grosvenor in Excelsa 6: 86 (1976). —Williamson, Orch. S. Centr. Africa : 210 (1977).
Information
Epiphytic herb, occasionally lithophytic; stem short, c. 2.5 cm long.Roots stout, up to c. 6 mm in diameter, arising at base of stem.Leaves 3–7, distichous; lamina up to c. 14 × 1.5 cm, linear, conduplicate, arching, obscurely 2-lobed at the apex, thick-textured, rather yellow-green.Inflorescences 1–2, arising from lower leaf axils, erect or arching downwards, 12–15 cm long, 4–5-flowered, the terminal flower opening first.Peduncle c. 8 cm long, with 4 or 5 tight black sheaths.Pedicel and ovary 2 cm long, twisted where it leaves the rhachis.Flowers non resupinate, fleshy, set 2–4 cm apart, creamy-yellow; ovary and outside of floral parts scattered with sparse, short rusty-coloured hairs.Dorsal sepal 13–14 × 6 mm, ovate, convex; lateral sepals 12–13 × 6 mm, obliquely ovate, with a decurrent wing on the lower side by which they are joined for c. 4 mm between the spur and the pedicel.Petals 11–12 × 4.8–5.5 mm, ovate, acute, spreading.Lip 11–12 × 5.5–6 mm, entire, very concave, boat-shaped, acute, fleshy; spur 16–20 mm long and c. 2 mm in diameter, very slender, pendent, straight.Column 3 mm long; viscidium slipper-shaped, fitting over the mid-lobe of the rostellum.Capsule c. 3 cm long, ellipsoid.
Habitat
Brachystegia woodland, and in riverine and evergreen rainforest
Altitude range
600–700 m.
700
600
Distribution
Zambia N Ntumbachushi Falls, c. 18 km west of Kawambwa, fl. ii.1970, G. Williamson & Drummond 1981 (K).Zimbabwe E Chimanimani Distr., \"Westward Ho\", 1360 m, fl. 27.iv.1954, Ball 336 (K; SRGH).Malawi N Nkhata Bay Distr., Mzenga Estate, c. 600 m, fl. iv.1981, la Croix 132 (K).
Distribution (external)
Tanzania
Zaire
Date Updated: 26 July 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 11, Part 2, (1998) Author: I. la Croix & P.J. Cribb
Names
Summerhayesia zambesiaca P.J. Cribb [family ORCHIDACEAE], in Kew Bull. 32: 185 (1977). —Ball, South. African Epiphyt. Orch.: 216 (1978). —la Croix et al., Orch. Malawi: 286 (1991). —Geerinck in Fl. Afr. Centr., Orchidaceae pt. 2: 505 (1992). TAB. 151. Type: Zambia, Ntumbachushi Falls, ii.1970, G. Williamson & Drummond 1981 (K, holotype; SRGH).
Summerhayesia genus novum, sp. 1 [family ORCHIDACEAE], of Grosvenor in Excelsa 6: 86 (1976). —Williamson, Orch. S. Centr. Africa : 210 (1977).
Information
Epiphytic herb, occasionally lithophytic; stem short, c. 2.5 cm long.Roots stout, up to c. 6 mm in diameter, arising at base of stem.Leaves 3–7, distichous; lamina up to c. 14 × 1.5 cm, linear, conduplicate, arching, obscurely 2-lobed at the apex, thick-textured, rather yellow-green.Inflorescences 1–2, arising from lower leaf axils, erect or arching downwards, 12–15 cm long, 4–5-flowered, the terminal flower opening first.Peduncle c. 8 cm long, with 4 or 5 tight black sheaths.Pedicel and ovary 2 cm long, twisted where it leaves the rhachis.Flowers non resupinate, fleshy, set 2–4 cm apart, creamy-yellow; ovary and outside of floral parts scattered with sparse, short rusty-coloured hairs.Dorsal sepal 13–14 × 6 mm, ovate, convex; lateral sepals 12–13 × 6 mm, obliquely ovate, with a decurrent wing on the lower side by which they are joined for c. 4 mm between the spur and the pedicel.Petals 11–12 × 4.8–5.5 mm, ovate, acute, spreading.Lip 11–12 × 5.5–6 mm, entire, very concave, boat-shaped, acute, fleshy; spur 16–20 mm long and c. 2 mm in diameter, very slender, pendent, straight.Column 3 mm long; viscidium slipper-shaped, fitting over the mid-lobe of the rostellum.Capsule c. 3 cm long, ellipsoid.
Habitat
Brachystegia woodland, and in riverine and evergreen rainforest
Altitude range
600–700 m.
700
600
Distribution
Zambia N Ntumbachushi Falls, c. 18 km west of Kawambwa, fl. ii.1970, G. Williamson & Drummond 1981 (K).Zimbabwe E Chimanimani Distr., \"Westward Ho\", 1360 m, fl. 27.iv.1954, Ball 336 (K; SRGH).Malawi N Nkhata Bay Distr., Mzenga Estate, c. 600 m, fl. iv.1981, la Croix 132 (K).
Distribution (external)
Tanzania
Zaire
Date Updated: 26 July 2007
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Zambesiaca
Resource Type
Reference Sources
Entry From
FZ, Vol 11, Part 2, (1998) Author: I. la Croix & P.J. Cribb
Names
Summerhayesia zambesiaca P.J. Cribb [family ORCHIDACEAE], in Kew Bull. 32: 185 (1977). —Ball, South. African Epiphyt. Orch.: 216 (1978). —la Croix et al., Orch. Malawi: 286 (1991). —Geerinck in Fl. Afr. Centr., Orchidaceae pt. 2: 505 (1992). TAB. 151. Type: Zambia, Ntumbachushi Falls, ii.1970, G. Williamson & Drummond 1981 (K, holotype; SRGH).
Summerhayesia genus novum, sp. 1 [family ORCHIDACEAE], of Grosvenor in Excelsa 6: 86 (1976). —Williamson, Orch. S. Centr. Africa : 210 (1977).
Information
Epiphytic herb, occasionally lithophytic; stem short, c. 2.5 cm long.Roots stout, up to c. 6 mm in diameter, arising at base of stem.Leaves 3–7, distichous; lamina up to c. 14 × 1.5 cm, linear, conduplicate, arching, obscurely 2-lobed at the apex, thick-textured, rather yellow-green.Inflorescences 1–2, arising from lower leaf axils, erect or arching downwards, 12–15 cm long, 4–5-flowered, the terminal flower opening first.Peduncle c. 8 cm long, with 4 or 5 tight black sheaths.Pedicel and ovary 2 cm long, twisted where it leaves the rhachis.Flowers non resupinate, fleshy, set 2–4 cm apart, creamy-yellow; ovary and outside of floral parts scattered with sparse, short rusty-coloured hairs.Dorsal sepal 13–14 × 6 mm, ovate, convex; lateral sepals 12–13 × 6 mm, obliquely ovate, with a decurrent wing on the lower side by which they are joined for c. 4 mm between the spur and the pedicel.Petals 11–12 × 4.8–5.5 mm, ovate, acute, spreading.Lip 11–12 × 5.5–6 mm, entire, very concave, boat-shaped, acute, fleshy; spur 16–20 mm long and c. 2 mm in diameter, very slender, pendent, straight.Column 3 mm long; viscidium slipper-shaped, fitting over the mid-lobe of the rostellum.Capsule c. 3 cm long, ellipsoid.
Habitat
Brachystegia woodland, and in riverine and evergreen rainforest
Altitude range
600–700 m.
700
600
Distribution
Zambia N Ntumbachushi Falls, c. 18 km west of Kawambwa, fl. ii.1970, G. Williamson & Drummond 1981 (K).Zimbabwe E Chimanimani Distr., \"Westward Ho\", 1360 m, fl. 27.iv.1954, Ball 336 (K; SRGH).Malawi N Nkhata Bay Distr., Mzenga Estate, c. 600 m, fl. iv.1981, la Croix 132 (K).
Distribution (external)
Tanzania
Zaire
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