Pheidonocarpa corymbosa subsp. corymbosa

Pheidonocarpa corymbosa subsp. corymbosa

Gesneria corymbosa Swartz, Prodr. 89, 1788.—Sw., Fl. Ind. Occid. 2:1022, 1800—DC., Prodr. 7:528, 1839.

Pentarhapia ?corymbosa (Swartz) Hanstein, Linnaea 34:307, 1865.

Heppiella corymbosa (Swartz) Urban, Symb. Ant. 2:368, 1901.—Adams, Fl. Pl. Jamaica 682, 1972.

Young stems and branches pubescent to pilose with whitish hairs.

Leaf margin serrate.

Peduncles 10.8–13.9 cm long; pedicels 0.4–1.4 cm long; calyx lobes narrowly triangular, to 2 mm long; upper lobes of the corolla limb 4–5 mm long, ca 2.5 mm wide, lateral lobes ca 3 mm long, ca 3.5 mm wide, lower lobe ca 2 mm long, 3 mm wide, margin erose to dentate; anthers 1–2 mm long, connective often dark red, usually coherent in 2 pairs, pollen grains isopolar, prolate, size small, 18.5–20.0 μm long at the polar axis, ca 8.5 μm long at the equatorial axis, tricolpate, apocolpia truncate to rounded, colpi narrowly attenuate, sexine uniformly heterobrochate, reticulate, lumina ca 0.25 μm across (Figure 18h).

TYPE-COLLECTION.—“India occid.: Jamaica,” O. Swartz sn (S, holotype).

CHOROMOSOME NUMBER.—N = 14 (Lee, 1966a).

DISTRIBUTION AND ECOLOGY.—Pheidonocarpa corymbosa subsp. corymbosa has been found only in the gorge of the Cane River in eastern Jamaica (Figure 23), where it grows on shaded limestone cliffs (Figure 1d) from 80 to 150 m elevation. Flowering occurs throughout the year.

SPECIMENS EXAMINED.—JAMAICA. PARISH OF ST. ANDREW: Cane River Gorge, ca 400 ft, 28 April 1960, C. Adams 6967 (UCWI); 100 m, 12 July 1962, F. Fosberg 42635 (US); 400 ft, 12 July 1907, W. Harris 9621 (BM 2 sheets, C, F, K, NY 2 sheets, UCWI, US); 250 ft, 18 December 1907, W. Harris 10053 (BM 2 sheets, C, F, K, NY, UCWI, US); 100 ft, 9 November 1912, W. Harris 11427 (BM, F, NY, UCWI, US); 1 January 1916, W. Harris 12314 (BM, F, GH, K, MO, NY, UCWI, US); no date, B. Morley 387 (UCWI); 14 February 1948, A. van der Porten sn (IJ); 250–400 ft, 22 May 1955, G. Proctor 10205 (BM, F, IJ, MO, US); 500 ft, February 1957, E. Robertson 2996 (K, UCWI); 400 ft, 9 August 1970, L. Skog 1620 (BH, US); 18 December 1955, W. Stearn 3 (BM); 8 April 1956, W. Stearn 694 (A, BH, BM); 300–500 ft, 9 March 1958, T. Yuncker 18349 (BM, MO). LOCALITY UNKNOWN: “Gesneria aspera, Jan.,” [1821], C. Bertero sn (AWH); “Jamaica, 1784–1786,” O. Swartz sn (S); “India occid.: Jamaica,”

no date, O. Swartz sn (S, holotype of Gesneria corymbosa Swartz). CULTIVATED: Cornell University, G-839, 31 March 1965, R. Clark sn (BH), 24 September 1965, B. Jackson sn (BH); Cornell University, G-1367, 11 May 1972, L. Skog 1826 (BH).