2.6 PATAGONIAN EXPEDITIONS I BOTANY. 



question to belong to a hybrid between P. pectinatus L. and P. filiformis 

 Pers. (cf. Engler, Das Pflanzenreich, IV. 11, Ascherson und Graebner, 

 Potamogetonacece] . 



Possibly P. natans L., Macl., p. 149, also is to be classified among 

 species to be deleted. In my work above referred to I provisionally 

 admitted it, but in a later work. "Zur Kenntnis der Gefasspflanzen des 

 stidlichen Patagoniens" I have insisted that the specimen is probably P. 

 linguatus Hagstr., not P. natans. Certainly, at present, no final judgment 

 can be passed on this subject. D. 



Macl., p. 149, line 4 from below, for "alternate" read "attenuate." The 

 embryo of Potamogeton pectinatus is spirally curved. 



Fam. 8. ALISMATACE^E. Macl., p. 152. 



Add the species Sagittaria chilensis Cham, et Schlecht. Pflanzenreich, 

 Alism., p. 43. Leaves sagittate, with rough margins; anthers linear, 

 yellow ; filaments short, broad, glabrous. 



N. W. Patagonia, lower part of Rio Puelo ; Chili. 



Macl., p. 153, middle of page, spell sic, 5. montevidensis. 



Fam. 9. HYDROCHARITACE^E. Macl., p. 153. 



Vallisneria spiralis L. is to be deleted, not being known from our 

 district. 



According to Macloskie, young specimens of this species were collected 

 by Hatcher at Rio Chico. But my examination of the specimens would 

 refer them rather to the genus Juncus. The young condition of the speci- 

 mens precludes a specific determination. 



Family 10. GRAMINE.E. Macl., p. 161. 



ANDROPOGON L. 



A. consanguineus Kunth. should be named A. consanguineus Kunth. 

 var. typicus Hack. 



PASPALUM L. Macl., p. 162. 



P. leucophczum H.B.K. is only a synonym of Panicttm insulare (L.) 

 Mey. var. typicum. 



ANTH^NANTIA Beauv. 



Macl., p. 163: Anthcenantia lanata Benth. should be deleted, the 

 species so far as I know, not having been found in Patagonia. D. 



