n ^ 



144 



a>NTKIRL'TIONS TU WESTEKN ROrANV Si\ J> 



* r 



long. Flowers small, in a flat and terminal head, much shorter than the 

 stout stipe of the ovary. Fruit so deeply divided as to form almost thre« 

 follicles which are smooth, somewhat laterally flattened and with elHptkal 

 tross-section, and almost reniform in outline. Seeds oval-ovate, acutish, 

 almost round in cross-section but with three obscure keels, truncate at 

 base, the hilum depressed, surface covered with minute warts or tubercles. 

 Seeds a little over 2 mm. long and 2 mm. wide, dark-reddish. This plant 

 t;4 allied to E. heterophylla, but the leaves are quite different, and the 

 =*e€ds different. No. 23325, Tepic, Nayarit, Februrj' 14, 1927, in wa,>te 

 places in fields, appearing as if at one time an immigrant. The poor 

 descnption of the species in DeCandolle Ptodromus makes it uncertain if 

 this IS the species, but the seeds are similar. Hemsley also mentioni* the 

 specie-i as occurring in various parts of eastern Mexico. 



Euphorbia gladiosa N. Sp. Low shrubs a foot or two high, but 



-— the first year, dichotomously branched below, and stems inclined 



to be racemosely branched above. Smooth and shining throughout, inclined 



be erect. Leaves Opposite, about 



rple blotch above 



norm 



very 



pie on the bulge below, in the younger plants the leaves are sometimes 

 lii^ear. Stipules sc-taceous and lacerate and white. Stems very slender 

 *nd tovv'.ird the top becoming capillary. Lower cymes rather dense and 

 (m nli.forni peduncles an inch or two long and cither in the axils of 

 leaver or opposite a leaf when one is wanting. Flowers normally half a 

 dozen m a head or cyme and the cluster subtended bv two leaves 



Usu- 



i^sde of a 



dozen flowers, one cluster 



obpyramidal 



nogormm umbellatum, and 2 cm. long, and with tips ciliate. Appenda 



one 



Ti^' J 'i ' ^ *°*^ ^ reddish and hardly 1 mm. long, about 

 tlurd as long as involucre. Fruit smooth; deeply 3-lobed and with 

 rounded edges, about 2 mm. long, slightly exserted. Seeds about 1 mm. 

 long cjlong acute square in cross-section, with rather sharp angles, with 

 aoout 6 wavy and anastomozing cross-ribs which form rather deep pits, 

 .^nd which go through the angles. The general habit reminds one of E. 

 «>roIIata but not .so erect. Lower stems reddish. No. 22613. Gua>Tnas, 

 >onora, November 2, 1926. 



. Euphofbfa stngosa H. & A. B^t. B^h. 310. This very poorly 

 Tl p'S^tT,'* some^Jat better described by Boissier in DC. Pr<i 

 i ."If / ? ?• ."'^"* *^*^" ^^ » unsatisfactory. Whether my 

 ^!!5c fe t'il^''.".**l^°^^- Erect perennials from rUmiing root- 

 ^tOcksc; Stdns 1-2 feet high, erect, simple, slender, minutely pubescent 



t X" ;^P*T *^?^?*' «^ding, 3-4 inches long by r^rdy ah inch 

 wide oblong-lanceolat*! acuminate, mostly acuminatt b^low, cm a stout 



S' 't^^ c ^<*»«' ^t»«. ««gli wifli a minute and appressed' 



7^A^ Zf^i^r^'T *?^^**« ^" a^ single blacVpurple clu^Sr sub- : 

 tended by 1.S bnMiantb. colored ^.purplb braet* Ty£h are 2:-4 inches 



