MACLOSKIE I REVISION OF FLORA PATAGONIGA. 31 



I avail myself of this opportunity of correcting an error in a previous 

 work of mine, "Die Gefasspflanzen der Magellanslander." My statement 

 about Stipa chrysophylla Desv. having been found in the district between 

 Lago Argentine and Ultima Esperanza is erroneous and refers to Stipa 

 pogonathera Desv. 



S. speciosa occurs in N. Patagonia, by Lago Nahuel-huapi and north- 

 wards to Mendoza, the subsp. chrysophylla also in N. Patagonia, Neuquen 

 Territory, and northwards to Atacama. 



S. TENUIS Phil. Macl., p. 176. 



Macloskie states Stipa argentina Speg. to be synonymous with this 

 species. The author himself being of opinion that it should be considered 

 a variety of the same, we may let it remain as such for the present. It 

 should be pointed out, though, that the difference between the species and 

 the variety is very slight. Any specimens of the latter I have not had at 

 hand. 



Stipa tenuis Phil. var. argentina (Speg.) does not occur in our district. 



Add Macl., p. 174: 



S. HIRTIFLORA Hack, in Dusen, Neue Gefasspfl. Patag., p. 5, Taf. 3, Fig. 



7, and Taf. 7, Figs. 4-5. 



Perennis, caespitosa, innovationibus extravaginalibus ; culmi erecti, tere- 

 tes, glaberrimi, ad 50 cm. alti, 3-nodes, nodo summo supra medio culmi 

 sito, apice breviter nudo; vaginae teretes, arctae, internodiis breviores, 

 glaberrimae, imae squamiformes, emortuae dilute fuscescentes, diu per- 

 sistentes; ligulae brevissimae, truncatae, ciliolatae; laminae anguste line- 

 ares, convolutae, junceae, acutae, inferiores ad 20 cm. longae, summa 3-4 cm. 

 longa, complicatae diametro i mm. erectae, rigidae, glauco-virides, glaber- 

 rimae, intus costis approximatis percursae ; panicula linearis, contracta, laxa, 

 12-15 cm - l n g a ramis paucis, ad racheos nodos binis erectis, filiformibus, 

 hirtellis, primario inferiore c.5 cm. longo, bispiculato, in J^ inferiore nudo, 

 secundariis unispiculatis, spiculis laxe subaequaliterque dispositis, subter- 

 minalibus, brevissime pedicellatis ; spiculae lineari-lanceolatae, c. 1 1 mm. 

 longae, ex albo-viridulo et livide violaceo-variegatae ; glumae steriles subae- 

 quales (I 10 mm., II n mm. longae), lanceolatae, acutissimae, 5-nerves (in 

 I nervi extimi brevissimi), in y* inferiore dorsi violaceae, ceterum albo- 

 viridulae, tenui-membranaceae, nervo medio scabro ; gluma fertilis lineari- 



