CATALOGUE. 321 



(sometimes 2-6' long,) the flowers deciduous ; calyx 5-parted ; petals none ; 

 glands scale-like ; stamens 6-12 ; filaments villous ; pistillate flowers subsol- 

 itary ; calyx 5-parted ; petals none ; ovary with an obscurely 5-lobed hypo- 

 gynous disk, globose, 3-celled ; stigmas sessile, deeply 2-3 times cleft ; cap- 

 sule 3" in diameter. — From Western Texas and Northern Mexico to South- 

 ern California, and north to San Francisco ; Southern Utah, (Palmer, 1870.) 



URTICACE^. 



Celtis occidentalis, L., Var. pumila, Gray. 2-6° high. All our 

 forms (excepting C. pallida, Torr.) may apparently be referred to this species, 

 ranging from New England and Canada to Oregon, and southward to Florida, 

 Texas and New Mexico. In the East Humboldt Mountains, Nevada, very 

 rare ; frequent in the Wahsatch, and on Stansbury Island ; 4,200-6,500 feet 

 altitude; May-July. (1,082.) 



Urtica dioica, L., Var. occidentalis. Monoecious or sometimes 

 wholly staminate, 3-6° high ; leaves ovate or ovate-lanceolate, acuminate, 

 coarsely serrate ; stem and leaves (especially beneath) covered with a fine 

 velvety pubescence ; bristles more or less numerous. — 190 Anderson, from 

 near Carson City; a New Mexican specimen in Herb. Gray, (196 Parry, 

 1867,) is probably the same, though but 1° high, more densely prickly and 

 less pubescent. Frequent on stream-banks in Nevada and in the Wahsatch ; 

 5-6,000 feet altitude. U. gracilis, Ait., is referred to this species by Dr. 

 Hooker and others. (1,083.) 



Parietaria Pennsylvanica, Muhl. More or less hispid throughout, as 

 usual, instead of downy as described. From Vermont, Wisconsin, and the 

 Saskatchewan to Tennessee, Colorado and New Mexico. Shade of rocks in 

 the East Humboldt Mountains, Nevada, and in the Wahsatch ; 4,500-6,500 

 feet altitude ; June-September. (1,084.) 



HuMULUS LuPULUS, L From Canada and the Saskatchewan to Geor- 

 gia, Arkansas, and New Mexico. Frequent in the Wahsatch and Uintas ; 

 6,000 feet altitude. , (1,085.) 



CUPULIFER^. 



Quercus alba, L., Var. Gunnisonii, Torr. Pac. R.R. Surv. 2., (Beck- 

 with's Rep.,) p. 130. {Q. stellata, Wang., Var. Utahensis, A. DC) In some 

 respects intermediate between Q. alba and Q. stellata, (Q. ohtusiloba, Mx.,) 

 41 



