368 CXXTI. ORCIITDACE^. 



widely diverging at base. G-lands nude. Stigma linear, 

 transverse. — Ilarv. Thcs. t. 101. 



A caulescent plant, with cordate-ovate or roundish, membranous, many- 

 nerved, subpetiolate leaves, sheathing at base, and a many-flowered spike. 

 There are two varieties, one witli snow-white, the other with purple and 

 green flowers ; both found on tlie frontier. This charming plant was dis- 

 covered on the Ivatberg by Mrs. Henry Hutton, whose name it deservedly 

 bears. 



34. HALLACKIA, Harv. 



Perianth of Huttoncea^ except that both sepals and petals 

 are fimbriate. Labellum concave at base, fimbriate. Anther 

 supine; the cells parallel, close-lying at base. Grlands . . . 

 Stigma . . .—Harv. Thes. t. 102. 



An elegant plant, with the aspect of Huttoncea^ from which it is known 

 by the anther and tlie fimbriate sepals. The only specimens I have yet 

 had for dissection are too imperfect to enable me to ascertain the exact 

 structure of the stigma, etc. This plant was first sent to me by Mr. 

 Hallack ; but I believe first discovered by Mr. Fannin, of the Dargle, 

 Natal, a fact which I did not know when I published it in Thesaurus. 



35. CEKATANDRA, Eckl. 



Perianth 2-labiate ; the upper sepal and the petals united 

 in a galea (which is mostly pendulous and anterior) ; the 

 lateral spreading, free. Labellum clawed, lunate, adnate to 

 the face of the column, nude or with a fleshy appendix. 

 Column horseshoe-shaped. Anther resupinate ; the cells 

 distant, adnate to the stigmatic arms ; glands nude. Stigma 

 small, 3-lobed, vertical, in the fork of the arms. — Lindl. Orch. 

 p. 363. 



Leafy herbs, drying black. Leaves very narrow, dilated at base, clothing 

 the whole stem. Roots fascicled, fleshy. Flowers in dense spikes, yellow. 

 — 5 or 6 species, in the Western districts. 



36. OMMATODIUM, Lindl. 



Perianth 2-labiate ; the upper sepal and the unequally-lobed 

 concave petals united in a galea ; the lateral spreading, free. 

 Labellum hastate, sessile, adnate to the column, with a mem- 

 branous, tubular appendix. Column membranous, truncate. 

 Anther erect, with distant, subparallel cells, truncate at base ; 

 glands nude. Stigma horizontal, with incurved arms. — Lindl. 

 Orch. p. 365. 



A 2-3-leaved plant, with a many-flowered, elongate spike of rather small 

 flowers. Nearly related to Pterygodium, but with a difierent anther. — 

 Western district. 



37. PTERYGODIUM, Sw. 



Perianth 2-labiate ; the upper sepal and the very large, un- 



