MACLOSKIE: REVISION OF FLORA PATAGONICA. 291 



P. PYGM^EA (Cass.). 

 Should be deleted, being Nassauvia pygmcea (Cass.) Hook. fil. 



Add Macl., p. 893: 



P. BECKII Hook. & Am. 



Syn. P. ftavescens Dus. 



Leaves of sterile branches mucronate, entire, margins strongly curled, 

 and prickly. Fertile branches erect, i -headed. Involucre 5-seriate, of 

 lanceolate scales, rough-glandular, marginally spiny. Corolla white. 

 Syn. Perezia flavescens Dus. Dus. Neue u. selten. Gefasspfl. Archiv. 

 for Bot, Bd. 7, n. 2, p. 46, Taf. 6, fig. 5 ; Taf. 9, figs. 4-11. Not identical 

 with Perezia doniana Less. Cf. Reiche, Flor. Chil., vol. iv, p. 447 ; nor 

 with Perezia recurvata Less. ; see Index Kewensis. This species is 

 characteristic of the east coast of Patagonia, where it has been collected 

 near Puerto San Jose, Puerto Madryn, Puerto St. Elena, Golfo de San 

 Jorge (Puerto Mazaredo), Puerto Deseado. 



P. 896 : Add : 



P. RECURVATA Less. var. SESSILIS Dus. Dusen, Neue u. selt. 



Gefasspfl., etc., p. 46, Taf. 6, fig. 4. 

 Mid-Patagon., Territory of Chubut by the Colonie General San Martin. 



Add Macl., p. 895 : 



P. PRENANTHOIDES LeSS. 



Erect, 60-80 cm., hairy below, dichotomously panicled. Leaves hairy, 

 rigid when dry, reticulate, the inner forming rosettes, petiolate, ovate- 

 oblong, pinnatisect; their segments ovate-elliptical, spinose-lobed. Stem- 

 leaves sessile, auricled and segmented. Heads numerous, turbinate- 

 cylindrical. Involucre 4-seriate, its leaves narrow linear-oblong, acute, 

 the inner ones 2 cm. shorter than the purplish flowers. Achenes oblong. 



North Patagonia, Territory of Neuquen. 



Add Macl., p. 894: 



P. LYRATA (Remy). 



Syn. Homoianthus lyratus Remy. 



Rhizome oblique, sending up rosettes of petiolate, oblong-spatulate 

 leaves; smooth, toothed or runcinate, 10 cm. long. Scapes rough, 

 glandular, with 1-3 spatulate leaves. Heads solitary, blue or white, ter- 

 minal, large ; involucre 4~5-seriate ; outer scales oblong, toothed. 



