360 JOURNAL OF THE WASHINGTON ACADEMY OF SCIENCES’ VOL. 13, No. 15 
Boehmeria arbuscula Killip, sp. nov. 
Small tree, 3 to 4 meters high, monoecious; young branches angulate, 
slighty corky, closely appressed-pubescent. Stipules narrowly linear-lanceo- 
late, 3 mm. long. Petioles 2 to 7 mm. long, appressed-pubescent. Leaf 
blades elliptic-ovate or slightly oblong (the alternate leaves unequal, the 
larger 1.5 to 3 cm. long, 0.8 to 1.5 em. wide, the smaller 0.4 to 0.8 em. long, 
0.2 to 0.4 em. wide), acuminate at apex, cuneate at base, 3-nerved (the lateral 
nerves extending to the upper third of blade), sharply serrulate, the upper sur- 
face dark green, plane or often rugulose, strigillous, with short stiff pellucid 
hairs, the under surface paler, appressed hirtellous, especially on nerves and 
veins. Flowers in compact axillary androgynous or unisexual clusters 3 to 
4 mm. in diameter. Staminate flowers depressed-globose, 7 mm. wide, 
strigillous without. Pistillate flowers narrowly lanceolate, about 1.4 mm. 
long, densely hirsute without; style 0.8 mm. long, hirsute at apex. 
Type in the U. 8. National Herbarium, no. 1,140,085, collected in thicket 
near Coconuco, Department of El Cauca Colombia, altitude 2,300 meters, 
June 17, 1922, by E. P. Killip (no. 6831). 
This is probably allied to B. excelsa Wedd., a tree known only from Juan 
Ferndndez. That species, however, has much larger leaves, hoary white 
beneath, larger flower clusters, and much longer styles. 
Phenax grossecrenatus Killip, sp. nov. 
Shrub, 2 to 2.5 meters high; branches sparsely hirsute, at length glabrate. 
Stipules ovate-lanceolate, 4 to 5mm. long. Petioles slender, 2 to 5 cm. long, 
glabrous or sparingly pubescent. Leaves ovate or ovate-lanceolate, 6 to 
12 cm. long, 3 to 6 em. wide, acute at apex, rounded or subcuneate at base, 
coarsely crenate (teeth 5 to 7 mm. broad, rounded, 10 to 14 on each side), 
3-nerved to the upper third of blade, above glabrous except on the tomentu- 
lous nerves, beneath minutely pubescent. Flowers in compact axillary 
androgynous clusters. Staminate flowers few, the lobes 0.5mm. long. Style 
3 to 4 mm. long, minutely pubescent with hooked hairs. Achene ovate, 1 
mm. long, sparsely pubescent. 
Type in the U. 8S. National Herbarium, no. 1,140,083, collected at edge of 
forest, near ‘“Canaan,”’ on the slopes of Mt. Puracé, Department of El Cauca, 
Colombia, altitude 3,200 meters, June 13, 1922, by F. W. Pennell and E. P. 
Killip (no. 6680). 
Allied to P. laziflorus Wedd., of Peru, this species differs in having larger, 
longer-petioled leaves, longer stipules, and larger androgynous flower 
clusters. 
