MACLOSKIE : REVISION OF FLORA PATAGONICA. 69 



hook is very small, thus setting it up as the type of the subgenus Psetido- 

 carex. The other sections (together making Eu-Uncinia] art Platyandrce, 

 with dilated filaments, and Stenandrce, with filiform filaments, and 

 smooth utricles. 



All the 21 species of Uncinia are found in the Southern Hemisphere, 

 in the Antarctic Islands, Australia, Tasmania, New Zealand, in the moun- 

 tains of South America; with stragglers northwards as far as Jamaica 

 and the Sandwich Islands. And a few species occur in Chili, Patagonia, 

 Fuegia and the Falkland Is. 



In the Patagonian flora, we have 



a. SPECIES OF PLATYANDR^E. 



UNCINIA BREVICAULIS Thou. Add Macl., p. 269. 



Rhizome long. Culm 10-30 cm. high, triquetrous, smooth. Leaves 

 on the culm, 3-7 mm. broad, folded at base. Spikelets dense, cylindrical, 

 4-12 cm., male part short. Scales few, oblong-obovate, embracing at 

 base, obtuse; utricles ending in a short beak. Style-base scarcely enlarged. 

 Secondary axis prolonged beyond the utricle. Syn. U. cylindrica Franch. 



Var. LATICARPA Kiikenth 



Has weaker culm ; spikelet subclavate. Scales dorsally green, margin 

 fulvous. Utricle green. 



West Patagonia, by Rio Aysen. 



Syn. U. cylindrica Franch. (Macl., p. 269, pro spec.), 

 W. Patagonia ; Molineaux Harbor, Chili ; Tristan da Cunha. 

 Its var. LATICARPA Kiikenth.; in West Patag. Var. MACLOVIANA 

 (Gaudich.) Falklands, and S. Fuegia. 



U. PHLEOIDES Pers. Macl., p. 271. 



Leaves long-attenuate. Rostrum short; rachil straight. 

 W. Patagonia, Rio Aysen, Rio Palena, upper part of Rio Chubut; S. 

 Chili ; Bolivia ; Peru ; Ecuador ; Colombia. 



U. PHLEOIDES Pers. var. LATICARPA Kiik. 



Rhizome woody, stoloniferous. Culm 30-75 cm., firm, smooth. Leaves 

 long, 4-10 mm. broad; sheaths brown. Spicules oblong-cylindric, api- 



