Fig. 1. Echeveria lutea Rose, sp. nov.


Echeveria lutea Rose, sp. nov.


Basal leaves numerous, ascending, thickish, 8 to 10 cm. long, light green, glabrous with upturned margins forming a deep trough, acuminate with mucronate tip, the apical portion upturned like a horn; flower­ing stem 20 to 30 cm. long; leaves 4 to 5 cm. long, linear, semiterete, stiff, flattened on the upper surface, pointed, with a toothed free margin at base; inflorescence a secund raceme, at first strongly reflexed but at the flowers often becoming erect; flowers 20 or more, often subsessile; sepals 5, distinct, very unequal, the longest 2 cm. long, free and toothed at base, linear, pointed, ascending; flower bud strongly 5-angled and pointed; corolla lemon yellow, 15 mm. long, the lobes distinct for about two-thirds their length but not spreading except a little at the tip.


Type in U.S. National Herbarium, no. 619743, collected at San Rafael, San Luis Potosi, Mexico, November, 1910, by C. A. Purpus and flowered in Washington, July, 1911.


This is a very remarkable species and quite distinct from all the others which we have had in cultivation. The foliage is of a rather pale green color, quite stiff, almost pungent. The flowers are a lemon yellow, an unusual color in the genus, only one other species being at all like it.


© Journal of the Washington Academy of Sciences, 1911