179 
this we have seen no flower, but the foliage is very re- 
markable: the two stipules are precisely of the same size 
and shape as the simple leaf, and all the three are com- 
bined by their bases, and prolonged into a sheath, so as 
to resemble a tripartite leaf with a sheathing base. 
243. (1.) Medicago sativa, Linn.—Cultivated at Mendoza, 
Dr. Gillies. 
244. (2.) Medicago minima, Lam.—Near El Salto de San 
Isedro, mountains of Mendoza, Dr. Gillies. 
245. (3.) Medicago denticulata, Willd.—Benth.— Valparaiso, 
Mathews (N. 166.) Conception, Messrs. Lay and Collie. 
Buenos Ayres, Dr. Gillies; Tweedie. Mountains of 
Mendoza, Dr. Gillies —Mr. Tweedie states this to be 
the common * Clover" of the plains of Buenos Ayres. 
246. (1.) Melilotus leucantha, Koch.—Buenos Ayres (cult.), 
Tweedie. 
241. (2.) Melilotus parviflora, Desf.—Conception, Messrs. 
Lay and Collie. Buenos Ayres, San Juan, and Mendoza, 
Dr. Gillies. Juan Fernandez, Dr. Scouler. Valparaiso, 
Mathews (N. 165.) 
248. (1.) Trifolium obcordatum, Desv.—8.? floribus duplo ma- 
joribus. T. grandiflorum, Hook. et Arn. in Bot. Beech. 
Voy. v. 1. p. 16.—2. Banda Orientale, Baird. Buenos 
Ayres, Dr. Gillies.—8. Conception, Messrs. Lay and 
Collie. Valparaiso, Bridges; Mathews (N. 281.)—Mr. 
‘Mathews’ specimens have the flowers of an intermediate 
size. 
249. (2.) Trifolium Macrei, n. sp. ; patenti-pilosum, caulibus 
procumbentibus diffusis, foliis anguste obovatis denticula- 
tis, stipulis lanceolatis acuminatis integerrimis, capitulis 
sessilibus rarius breve pedunculatis hemisphzerico-globosis 
multifloris, calycibus piloso-sericeis dentibus longis seta- 
ceis rectis carina acuminata paulo brevioribus.—Baths 
of Collina, Macrae. Sandy hills, near Valparaiso, Ma- 
thews (N. 174.) Valparaiso, Cuming (N. 149.) 
N2 
