1904] NELSON: ROCKY MOUNTAIN PLANTS 279 
anthers with a fringe of long hairs on each side, but not other- 
wise hairy; anther cells caudate basally: calyx with five short 
_ triangular lobes about 2™™ long: discoid stigma about 3™™ broad: 
| capsule oval, somewhat pointed apically, 1o-11™" long, about 
7™™ in diameter; style persistent, nearly 9™ long, strongly 
curved: seeds very numerous, irregularly angular, light-brown, 
obscurely pitted. 
The affinity of this species is with Orobanche Ludoviciana Nutt. It turns 
ferruginous on fading or after bruising, First collected, June 7, 1903, by Dr. 
M. Grabham, at Pecos, N. M., where it occurs as a parasite on the roots of 
Quercus. 
THE Rocky MouNTAIN HERBARIUM, 
Laramie, Wyoming. 
