GOURD FAMILY 69 
3. Marah horridus (Congdon) Dunn. Sierra Man-root. Fig. 5075. 
Echi tis } ida Congdon, Erythea 7: 184. 1900. 
Marah isovihies Dunn, Kew Bull. 1913: 151. 1913. 
Stems striate, glabrous, long, and branching. Leaves glabrous or scaberulous, 4-12 cm. long, 
the width greater than the length, the sinus broadly rounded at the base of the blade, open or closed, 
the petiole equaling or a Eos met hcg ae. blade this 3-7-lobed, usually 5, og to well below 
the middle, to a lesser deg 1 lea pi haa season, the sinuses between the lobes acute; 
lobes of the leaf 1-2 cm ge i t bas — bristle- uEpee ex, the margins of 
the lobes with 1-4 bro. ad, ceanentee beetle jis pee on each side, eh merely sinuate- 
toothed ; staminate inflorescence 10- g, racemose, paras ree tt loosely sich, the 
flowering portion shorter than the peduncle; stamin flow hite, 1-1. g, 
8 long, markedly campanulate with a truncate bate, pee ay revolute, oblong, the onli els 
or longer that slog il xillary, tube m shallow than the 
ent, narrowly ell iptic, o mm. pew fruit 10-16(20) 
y pubesc 
cm. long, reg | 4-celled, ae surface Seats kc e with many long spines of unequal length, 
these stout or slender on the same fruit, pe baa mes pubescent with soft hairs even in age; 
seeds 8-10, pl 26-32 m ae ong, 15-18 mm. wide, one end slightly dine Tes ls hg other terete. 
Climbing over shrubbery va digger pine belt Pcie petal gad of the ponderosa a, Upper Sonoran mba 
—— slopes of the Sierra avade from hastens Cou n County, California. Type locality: Mari 
County. Collected by Congdon. March-April. 
5075. Marah horridus 
