144 MUSEO NACIONAL DE BUENOS AIEES. 



ticulare testa laevi f ulva v. f erruginea, embiyone cyclico, api- 

 cibus radiculae et cotyledonum snperis. 



Species sequenti affinis majuscula annua, foliis juvenilibus 

 edulibus donata, tliecis fructiferis subdimorpliis mox-digno- 

 scenda. 

 496 . Atriplex hortensis Linn. = DC, Pr. xiii, 2, p. 92. 



Ilah. Ex ciiltis aufuga, niinc in agris vnlgata prope Trelew, 

 Chubut, aest. 1901 ( F. Basaldua ). 



497. Atriplex montevideensis Spreng. = DC., Pr. xiii, 2, p. 113. 



Hah. In uliginosis subsalsis non rara prope Carmen de Pa- 

 tagones, Febr. 1898 (C.S.), nec non in Golfo de S. Jorge, 

 £est. 1899 (C. A.). 



Ohs. Species perennis, prostrato-effusa, densissime ramosa 

 Atriplici cristatae HBK certe cognata; bracteis tliecae ultra 

 médium connatis, embryonis apicibus, radiculae et cotyledo- 

 num, superis! 



498. Atriplex lampa (tÜI. =:DC. , 1. c, p. 110 — Atriplej- cacliiyii- 

 yu F. Kurtz, Bol. Ac. Cord. xv, p. 510 — Atriplex ceratojphtjl- 

 la OK. , R&v. gen. pt. iii, 2. p. 266. 



Hah. Vulgata in salsis aridissimis secus Rio Chubut, aest. 

 1896-900 (C. A., J. Koslowsky, N. Illin, F. Basaldua etc. ), 

 nec non prope Lago Naliuel-liuaj)i, Dec. 1897 ( C. S. ) . 



Ohs. Embryonis cyclici radícula supera ! Atriplex lampa 

 OK. ( non Gilí. ) 1. c. est species altera longe diversa ! 



499. Atriplex macrostyla Speg., n. sp. 



Diag. Ohioue, dioica^ perenim, to*a lepidoto-suhargentea., 

 humilis catalice lignoso ápice dense midtiramoso, ramis gracili- 

 hus teretihus erecfis v. prostratis siniplicihus v. parce ramulosis 

 foliosis, foliis confertis v. relaxatis alternis v. suhoppositis 

 parvis crassiusculis sed faccidis, (¡nandoíjHe .mhorhicula) ihns 

 quandoque ellipticis ohfusis integerrimis, hrecissinie petiolatis 

 V. sessilihus, florihus in glomerulis apicalihus v. a.xillarihus 

 dense congestis mascidis pro ratione majuscidis ferriigineo-lepi- 

 dotis, foemineis canescenti-sid)lamiginosis, stijlis maximis longe 

 exertis ornatis. Theca hractearum ohdeltoidea, deorsiim cunea- 

 ta, sursum rotundato-suhtruncata ohsolete tridentata, diu stylis 

 exertis ornata, primo compressa in disco laevi, dein inflata 

 plus minusve callosa atque hicristata. 



Hah. Non rara in salsis aridis secus Rio Chico, aest. 1897-98, 

 nec non secus Rio Deseado, aest. 1899-900 (C. A. ). 



Ohs. Trunci crasse lignosi ( 3-() mm crass. ) ligno albo com- 



