Monographs Details: Myrcia subsessilis var. subsessilis
Authority: Maguire, Bassett. 1969. The botany of the Guayana Highland-part VIII. Mem. New York Bot. Gard. 18: 1-290.
Family:Myrtaceae
Discussion:

Myrcia subsessilis a subcordata Berg, Linnaea 31: 251. 1862.

Berg recognized two infraspecific taxa in this species, without any indication that one was more "typical" than the other. Under the present Code of Nomenclature it is necessary to choose a lectotype of the species. The type of Myrcia subsessilis a subcordata. Spruce 3123 "in hb. Mart." is hereby designated as such. I could not locate the type at Brussels in 1954, but I have seen isotypes at C G E , P, and W, and I believe they represent what I a m now calling M . subsessilis var. subsessilis. C O L O M B I A . Boyaca: Los Llanos, 15 k m E of Barranca de Upia, elev 300 m, 12 Feb 1939 (fl), Haught 2600 ( M I C H ) . Amazonas-Vaupes: Rio Apaporis, Raudal Yayacopi, elev ca 250 m, 16 Feb 1952 (imm fr), Schultes & Cabrera 15394 ( M I C H ). Meta. Ca 20 k m SE of Villavicencio, elev ca 500 m, 17 IMar 1939 (fl), Killip 34299 ( B M ) ; llano de San Martin, elev 300 m, Jan 1856 (fl), Triana 13 ( B M ) . V E N E Z U E L A . Amazonas: Cerro Yapacana, upper Rio Orinoco, elev 100 m, Apr 1931 (bud), Holt & Blake 703 {¥, NY); region of San Fernando de Atabapo, elev 120- 150 m, 25 Apr 1954 (fl), Silverio Level 14 (MICH; a good match for Spruce 3123, isotype), 12 Nov 1953 (bud), Maguire et al 36218 (MICH), 16 Feb 1954 (bud), Maguire et al 37696 (MICH); Maroa, Rio Guainia, elev 127 m, 9 Feb 1942 (fr), Williams 14208 (F); Yavita-Pimichin trail, Rio Guainia, elev 120-140 m, 22 Nov 1953 (fl), Maguire et al 36320 (MICH); Yavita, elev 128 m, 21 Jan 1942 (fl), Williams 13867 (F). Bolivar. Piedra Marimare, E bank of Rio Orinoco opposite head of Isla El Gallo, elev 100 m, 20 Dec 1955 (fl), Wurdack & Monachino 40874 (MICH).

The following have unusually narrow leaves, 1-2 cm wide, 5-10 cm long, subsessile and subcordate; they are otherwise hardly different from Myrcia subsessilis var subsessilis. COLOMBIA. Amazonas-Vaupes: Rio Apaporis, Raudal Yayacopi, elev ca 250 m, 16 Feb 1952 (bud), Schultes & Cabrera 15397 (MICH), 15 Apr 1952 (fl), Schultes & Cabrera 16198 (MICH).