130 Rhodora [AuGusT 
Fic. 4. H. decumbens and seeds (showing variation). 
no. 4724 (hb. Gray, hb. U. S. Nat. Mus., hb. Mo. Bot. Gard., hb. 
N. Y. Bot. Gard.). Mexico: Alvarez, state of San Luis Potosi, 
Dr. Edward Palmer. no. 232 (hb. Mo. Bot. Gard., hb. U. S. Nat. 
