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Plant Name Details

Euphorbiaceae Euphorbia micromera Boiss.

Proc. Amer. Acad. Arts 5: 171 (170-171). 1861 [early-mid 1861]


Arizona (Southwestern U.S.A., Northern America)

Type Information


C. Wright 1854


San Pedro River

Type Location:

holotype G-DC?


same citation as:Euphorbiaceae Euphorbia micromera Boiss. Prodr. [A. P. de Candolle] 15(2.1): 44. 1862 [late Jan 1862]

nomenclatural synonym:Euphorbiaceae Chamaesyce micromera (Boiss.) Wooton & Standl. Contr. U.S. Natl. Herb. 16: 144. 1913

Remarks: Engelmann, the author of the Euphorbia treatment in A. Gray's article, mentioned: ... Mr. Boissier, however, distinguished, and perhaps justly, Wright's no. 1854, from the San Pedro River in Arizona, under the name of E. micromera, in DC. Prod. Ined., by the very small involucres (0.2 lines long), the entire absence of appendages on the small yellow, not purple, glands, and the extremely short styles with subglobose stigmas ..."

Id: 101745-2 Version: View Record history

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