214 American Midland Naturalist Monograph No. 4 



flowers tiny, 4-Iobed, white, crowded in clusters of several in the leaf-axils; 

 fruits small, divided into 2 seed-like structures, white-hairy with long stiff 

 hairs longer than the diameter of the fruit. 



Occurrence. — grand canyon, in the canyon, 2,500 ot 6,500 feet: Bright Angel 

 trail near the Colorado River and several miles above; Kaibab frail above Roaring 

 Springs; Bright Angel Creek above Phantom Ranch. 



Honeysuckle Family (Caprifoliaceae) 



Field Guide to the Genera 



Leaves with unloothed margins, mostly rounded or blunt-pointed at tips. 



Corollas bell-shaped to funnel-shaped, with short lobes, regular, white to pink- 

 ish; berries dry, spongy, white SYMPHORICARPOS, p. 214. 



Corollas tubular, rather deeply lobed or 2-lipped, white, yellow, orange, red, or 

 purple, the tubes usually with swelling on one side; berries juicy, not 



white LONICERA, p. 218. 



Leaves with margins toothed, p>ointed at tips. 



Corollas yellow, funnel-shaped, rather deeply lobed; fruits dry capsules; low 



shrubs mostly less than 3 feet high DIERVILLA, p. 223. 



Corollas white, saucer-shaped with short tubes; fruits berry-like; tall shrubs 

 mostly more than 3 feet high. 



Leaves simple; fruits red, containing a single flattened seed 



VIBURNUM, p. 224. 



Leaves divided into several pairs of leaflets; fruits small red or purple- 

 black berries wdth 3 to 5 seed-like nutlets SAMBUCUS, p. 225. 



Snowberry {Symphor'tcarpos L.) 



The snowberries are rather low shrubs with slender branches, usually gray- 

 ish-green foliage, and inflated-looking waxy-white berries. The flowers are 

 small and not very conspicuous, but because of the attractive fruits which 

 remain on the bushes for a long time, snowberries are often cultivated as 

 ornamentals. The foliage is browsed by deer and birds eat the berries. 



Field Guide to the Species 



Flowers broadly bell-shaped, about J,^ inch long, hairy in the throat; leaves mostly 

 elliptic to egg-shaped or roundish. 



Leaves mostly smooth, at least above; flowers densely hairy in the throat; erect 



shrubs - - 1 . 5. alius. 



Leaves finely and softly hairy; flowers sparsely hairy in the throat; low spread- 

 ing or prostrate shrubs 2. S. mollis. 



Flowers narrowly bell-shaped to funnel-shaped or tubular, I/4 to ^g inch long, the 

 throat hairy or not hairy inside; leaves narrowly oblong to elliptic or oval. 



Flowers J/^ to 5/2 inch long, the corolla-tubes hairy or not hairy inside 



3. 5. roiundifoUus. 



Flowers % to 5^ inch long, the corolla-tubes scarcely hairy inside 



4. 5. longiflorus. 



I. Common Snowberry (Symphoricarpos albus (L.) Blake), fig. 127. 

 — Spreading shrubs 2 to 5 feet high; leaves thickish, oval to egg-shaped or 

 roundish, broadly lobed or wavy-margined, mostly smooth above, sometimes 



