CAPRIFOLIACEAE (HONEYSUCKLE FAMILY) 469 



with a glaucous mealy bloom, rather large. Idaho to Washington, and 

 possibly in Utah and Wyoming. 



la. Sambucus glauca neo-mexicana (Wooton) A. Nels. Habit of the 

 species but with narrower leaves and a tendency to puberulence upon foliage 

 and inflorescence. (S. neo-mexicana Wooton, Bull. Torr. Bot. Club 25: 309. 

 1898.) Mountains of southern Colorado and New Mexico. 



2. Sambucus canadensis L. Sp. PL 269. 1753. Plants 1-3 m. high, gla- 

 brous except some fine pubescence on midrib and veins of leaves beneath: 

 leaflets (5-11) mostly 7, ovate-oval to oblong-lanceolate, acuminate, the lower 

 not rarely bifid or with a lateral lobe; stipules not uncommon, narrowly linear, 

 and tipped with a callous gland: compound cymes depressed, 5-rayed; exter- 

 nal rays once to thrice 5-rayed: fruit dark purple, becoming black, with very 

 little bloom. From the Rocky Mountains eastward to Canada and Florida. 



3. Sambucus melanocarpa Gray, Proc. Am. Acad. 19: 76. 1883. Stems 

 1-2 m. high; glabrous or the young leaves slightly pubescent: leaflets 5-7, 

 rarely 9: cyme convex, as broad as high; flowers white: fruit black, without 

 bloom. New Mexico to Montana and westward to the Pacific. 



4. Sambucus microbptrys Rydb. Bull. Torr. Bot. Club 28: 503. 1901. A 

 low shrub 5-20 dm. high, glabrous throughout and with pale green foliage: 

 leaflets ovate or rarely ovate-lanceolate, acute or short-acuminate, 3-9 cm. 

 long, mostly rounded and oblique at the base, coarsely serrate : cyme thyrsoid- 

 paniculate, small, about as long as broad, about 3 cm. in diameter and of the 

 same height; flowers whitish: fruit bright red, 4-5 mm. in diameter; seeds 

 finely punctate-rugose. S. racemosa. Throughout our range. 



2. VIBURNUM L. 



Shrubs, with simple leaves and white flowers in flat compound cymes. 

 Petioles sometimes bearing little appendages which are evidently stipules; 

 leaf-buds naked or with a pair of scales. Calyx 5-toothed. Corolla spread- 

 ing, deeply 5-lobed. Stamens 5. Stigmas 1-3. Fruit a 1-celled, 1-seeded 

 drupe, with soft pulp and a thin-crustaceous (flattened or tumid) stone. 



Leaves pinnately veined; fruit blue or black 1. V. Lentago. 



Leaves palmately veined; fruit red. 



Cyme with the exterior flowers ray-like . . . . . . 2. V. Opulus. 



Cyme with no radiant flowers 3. V. pauciflorum. 



1. Viburnum Lentago L. Sp. PI. 268. 1753. A shrub or small tree; gla- 

 brous or nearly so throughout: leaves ovate, rounded at the base, acuminate, 

 5-10 cm. long, sharply serrulate: cyme sessile, several-rayed, 6-12 cm. broad: 

 drupes oval, black with a bluish bloom, the stone nearly circular and very 

 flat. Along streams; across the continent northward. 



2. Viburnum Opulus L. 1. c. A shrub 1-3 m. high, the branches smooth 

 and nearly erect: leaves broadly ovate, glabrous or sparsely pubescent above 

 and on the veins beneath, 3-ribbed and 3-lobed, the lobes acuminate and 

 coarsely dentate; petioles glandular above: cymes 6-10 cm. broad, with the 

 outer ray-flowers neutral: drupes edible, 8-10 mm. in diameter, red, acid, 

 translucent; the stone flat, orbicular. HIGH BUSH CRANBERRY. The Euro- 

 pean cultivated form with nearly all the flowers neutral is the common 

 SNOWBALL. Coming into the northeastern part of our range. 



3. Viburnum pauciflorum Pylaie, T. & G. Fl. N. A. 2: 17. 1841. Glabrous 

 or pubescent, 8-15 dm. high, straggling: leaves roundish or broadly oval, 

 unequally dentate, many of them either obsoletely or distinctly 3-lobed, 

 about 5-nerved at base: cymes small, terminating short and merely 2-leaved 

 lateral branches, involucrate with slender, subulate, caducous bracts, destitute 

 of neutral radiant flowers: fruit much as in the preceding. Mountains of 

 Colorado, northward and eastward in cold or mountainous regions. 



3. LINNAEA Gronov. TWIN FLOWER 



A slender creeping and trailing little evergreen, somewhat hairy, with 

 rounded-oval sparingly crenate leaves contracted at the base into short pet- 



