MACLOSKIE I REVISION OF FLORA PATAGONICA. 39 



Add Macl., p. 186: 



A. ccespitosa Gaud, is identical with A. stolonifera, which is itself iden- 

 tical with A. alba, fide Skottsberg. 



A. COGNATA Steud. Macl., p. 186. 

 To be placed as a variety of Agrostis magellanica Lam. (Macl., p. 188). 



A. EXASPERATA Trin. Macl., p. 187. 



Perhaps I should not omit mentioning that O. Kuntze describes a 

 couple of colored forms to which he has given the rank of varieties 

 under the names of mridis and purpurascens, their spikelets being tinted 

 as indicated by their names. Cf. Kuntze, Rem. Ill 2 , p. 339. 



A. LECHLERI Steud. Macl., p. 188. 

 The species not being known from our district should be deleted. 



Add Macl., p. 188: 



A. LEPTOTRICHA DeSV. 



Annua, caespitosa; culmi elati, 4.5-10.0 dm., alti, glabri, splendentes, 

 in % longitudinis foliati ; folia plana, sicca convoluta, striata, utrinque 

 ad strias nee non ad margines denticulato-scabra, anguste linearia, 8-13 

 cm. longa, vaginis 5-16 cm. longis, striatis, scabriusculis, ligulis oblongis, 

 3-4 mm. longis, apice laceratis; panicula 13-16 cm. longa, primo con- 

 tracta, demum laxissima, ramis longissimis, tenuissime capillaribus, ter- 

 quaterve di- vel trichotome ramulosis, nutantibus, non divaricatis, inferiori- 

 bus 5-8 verticillatis, % longitudinis paniculae aequantibus ; pedicelli 6-20 

 mm. longi scaberuli, sub spiculis c. 3 mm. longis incrassati ; glumse steriles 

 subaequales, ovato-lanceolatae, carinatae, carina denticulato-scabra; callus 

 breviter pilosus ; gluma fertilis glumis paullo brevior, mutica, glabra, 5- 

 nervata, nervo medio infra apicem evanescente, apice truncata et 4-mucro- 

 nulata ; palea minima, rotundata. 



N. W. Patagonia, Rio Manso ; S. Chili. 



Description. Annual, cespitose, with glabrous culms; leaves plane, 

 narrow-linear, striated, scabrous on both sides; sheaths striated, sca- 

 berulous ; ligules oblong, lacerate ; panicle at first contracted, at last open, 

 lax, rays very long, capillary, di-trichotomous, nodding but not divaricate, 

 the lowest ones verticillate, 5-8-partite, as long as two thirds of the panicle ; 

 pedicel scaberulous, incrassate at top ; glumes subequal, ovate-lanceolate, 



