CXXIT. OTlCnTDxiCEiE. 3G7 



30. PORFICARIA, Liiidl. 



Periantli concave, riugent. Sepals free, concave, the inter- 

 mediate spiirless, larj^er than the hiteral, and happing over 

 them in the bud. Petals free, subulate, abruptly twice bent 

 in the bud. Labellum fleshy, truncate, free, small. Anther 

 rcclinate, with parallel, close-lying cells, and 2 nude, triangular 

 glands. Stigma adnate, hollow, simple. — Lindl. Orch. p. 362. 



A single species, with rigid, linear, acute radical leaves, and racemose 

 flowers. — Found in Dutoit's Kloof by Drt%e. 



31. HERSCHELIA, Lindl. 



Perianth ringent, as in Disa. Petals hidden under the galea, 

 fleshy, collateral, eared at base, hatchet-shaped at the apex, 

 twice as long as column. Labellum oblong, fleshy, quite en- 

 tire. Column small, 2-parted. Stigma fleshy, raised, concave, 

 at the base of the labellum. Rostellum 3-parted ; the lateral 

 lobes narrower, acuminate ; a dorsal, linear, 2-lobed appendix 

 is placed in front of the anther. Anther horizontal, with 

 parallel, short cells ; glands 2, very large, truncate, horny, 

 toothed. — Lindl. Orch. jp. 362. 



H. coelestis, Lindl., the only species, grows on the summit of Table 

 Mountain, flowering in March. It has many setaceous, radical leaves, and 

 a slender distantly-sheathed stem, 1-2 feet high, ending in a raceme of 4-6, 

 sky-blue flowers. A most elegant plant, with the aspect of a Disa, sect. 

 Trlchocliila. 



32. BRACHYCORYTHIS, Lindl. 



Perianth oblique. Sepals free, the back one slightly con- 

 cave, ovate, much smaller than the lateral, unequal-sided ones. 

 Petals oblong, erect, oblique at base, fleshy in the middle, ad- 

 nate at base to the column. Labellum longer than the lateral 

 sepals, coriaceous, concave at base, but spurless,' dilated and 

 3-toothed at the apex. Anther reclinate, 2-celled, pedicelled, 

 adnate to the large, ovate stigma, hidden within the ca\ity of 

 the labellum. G-lands 2, nude. — Lindl. Orch. p. 363 ; Harv. 

 Thes. t. 53, 54. 



Leafy herbs, with densely-flowered, leafy spikes. — 2 species, natives of 

 Caifraria and Port Natal. 



33. HUTTON^A, Harv. 



Perianth 2-labiate, the upj^er lip formed of the ovate, quite 

 entire, flat sepals, of which the lateral are much the largest, 

 united in a single piece by the bases of the claws of tlie petals. 

 Petals with long claws, and a hood-shaped, fimbriate limb. 

 Labellum free, flat, fimbriate. Anther resupinate ; the cells 



