84 PATAGONIAN EXPEDITIONS : BOTANY. 



CAREX VALLIS-PULCHR/E Phil. 



Of no. 20, but stigmas 3 ; cespitose, few culms ; long, smooth rostrum, 

 2-toothed. 



Falkland Is. Also in Argentina. 



Add p. 289 : 



C. VALLIS PULCHR/E Phil. 



Rhizome branching. Culms 3-5 cm., filiform, terete, sulcate. Leaves 

 as high, filiform, canaliculate, obtuse, rigid. Spikelets androgynous, 5 

 mm. long, few-flowered, pseudolateral. Utricles just exceeding the ovate- 

 lance scales, stipitate, obsoletely trigonal, and long-rostrate, 2-toothed. 

 Stigmas 3. 



Argentina; Chili, Falkland Is. 



C. VULGARIS Fries. Macl., p. 289. 

 Is to be deleted, not occurring in our district. 



C. VULGARIS Fries, var. ANTUCENSIS (Kunze) Kiikenth. 

 A dubious plant, being, according to Kiikenthal, perhaps identical with 

 Carex decidua Boott. Cf. Pflanzenreich, IV., 20, p. 306. 



C. UROLEPIS Franch. Macl., p. 288. 



To be left out, being identical with C. Darwinii Boott var. aristata 

 Clarke. 



Fam. 12. ARACE.E. Macl., p. 289. 



PISTIA L. 



P. STRATIOTES L. Macl., p. 290. 

 Should be deleted. 



The proper province of this species is the tropical parts of the Old and 

 New World, but, in the latter it extends into its subtropical section, and, 

 in S. America, reaches Paraguay and, probably, also the subtropical part 

 of Argentina. At high floods in the River Plate basin it is, not seldom, 

 carried down its estuary, but it is only as an occasional visitor it appears 

 in the latitude of Buenos Aires and La Plata. It certainly does not 

 belong to the flora of S. Argentina, and still less to that of Patagonia. 

 There is, therefore, not the slightest doubt that it should have no place 

 in a representation of the flora of our district. 



