324 



PATAGONIAN EXPEDITIONS I BOTANY. 



wings apically ligulate. Labellum cuneate, ligulate at the base, puber- 

 ulous in the mid-line, anteriorly revolute on both sides ; the margins with 



narrow, subulate processes, which are opposed inter- 

 nally by triangular calli ; also an apical obtuse callus. 

 Beautiful. Patagon., Fuegia, Orange Harbor. 



14. CHLOR/EA PLEISTODACTYLA Krnzl. & Speg. 



Spikes long, about lo-flowered. Flowers rather large, 

 tepals white-rose ; wings apically more or less attenuate 

 and inmscate, callous-thickened ; labellum broad-ovate, 

 serrate-dentate, densely verruculose-appendiculate. 



Patagon., not rare in hills near Carren-leofu. 



15. C. SPEGAZZINIANA Kmzl. & Speg. 



Spikes 3-6-flowered ; flowers rather large ; wings apic- 

 ally thick, fuscate-callous, basally yellow. Sepals white- 

 rose, obscurely and densely clathrate-nervose. Label- 

 lum yellow, slightly obtuse, entire, sparsely papillose, 

 verrucose. 



Patagon., common in mountain meadows by Carren- 

 leofu. 



i 



2. CODONORCHIS Lindl. (Pogonia Juss. p. p.) 



Ttiberous, with 3-6 leaves in a whorl .about midway 

 on a i -flowered scape. Petals exceeding the sepals. 

 Labellum free, spurless, sessile, or attenuate downwards, 

 surrounding the gynandrium. 



Species 2, in extra-trop. S. Amer. (Sometimes in- 

 cluded in Pogonia, which has a solitary leaf on the scape.) 



C. LESSONII Lindl. (Pogonia tetraphylla Poepp. & 



Endl.) 



Leaves mostly 3 in the whorl, broad-ovate, petioled. Flower large, 

 white, marked with purple (Fig. 58). 



S. Chili, S. Patagon., at Cabo Negro and Punta Arenas (Hatcher; in 

 flower, Jan., 1897). Fuegia. Staaten I. Falklands. 



Codonorchis lessonii. 



