206 



American Midland Naturalist Monogra.>h No. 4 



Fig. 124. Singleleaf ash {Fraxinus 

 anomala). 



axils, the petals none; fruits oblong, i^ to 

 % inch long. The herbage is browsed to 

 a certain extent by animals. 



Occurrence. — ZION, occasional: road below 

 Temple of Sinawaya. GRAND CANYON, 4,400 to 

 6,700 feet. South Rim, rare: between Yaki Point 

 and Shoshone Point; Grandview trail. Canyon, 

 common: Bright Angel trail; Hermit trail; Ha- 

 vasu Canyon; Bright Angel Canyon; Kaibab 

 trail above Roaring Springs. 



Rough Menodora {Menodora scabra 

 Gray) . — Low herb-like shrubs 1/2 to 1 (or 

 2) feet high, with numerous slender stems 

 clustered at the woody base; leaves some- 

 what leathery, sparsely hairy, alternate or 

 the lower opposite, not toothed, oblong- 

 to linear-lance-shaped, about ^2 irich long 

 or the lower larger and broader, up to 

 about lya inches long; flowers yellow, the 

 corolla with short tube and 5 oblong 

 spreading lobes; fruits small 2-lobed cap- 

 sules, the cells ovoid to globose, each 2- 

 seeded. 



Occurrence. — ■ GRAND CANYON, rare on the 

 South Rim : Pasture Wash. 



New Mexican Forestiera, Paloblanco (Forestiera neomexicana 

 Gray). — Much-branched shrub 5 to 10 feet high with opposite leaves and 

 often spine-tipped branchlets; bark smooth, grayish or yellowish; leaves gray- 

 ish-green, reverse-lance-shaped to narrowly egg-shaped, tapering to a point 

 at the base, usually not more than twice as long as wide, ^ to 1^/^ inches 

 long, smooth, the margins finely toothed, often tending to be clustered at the 

 ends of the branches; flowers small and inconspicuous, greenish-yellow, clus- 

 tered along the stems before the leaves appear; petals none, or rarely 1 or 2, 

 white; fruits oblong, i^ ^o 1/3 inch long, bluish-black when ripe, 1 -seeded, 

 borne on slender stems in clusters of few to several in the leaf-axils. 



Occurrence. — mesa VERDE, occasional: north-facing slopes of Long Canyon near 

 junction with Navajo Canyon. 



Phacelia Family (Hydrophyllaceae) 

 Yerba-santa {Eriodictyon Benth.)44 



The generic name, Eriodictyon, is from the Greek, erion, wool, and dic- 



44 A very showy species, Eriodictyon Parryi (Gray) Greene (Syn. Nama Parryi 

 Gray), is found at Horseshoe Bend along the entrance highway to Kings Canyon 

 National Park. 



