GOOSEBERRY FAMILY 397 



3. L. parvula (A. Gray) Rydb. Low shrub, 1 m. high or less; spines slender, 

 2-4 mm. Ions, rarely much stronger than the bristles; leaves usually fiilly as broad 

 as long, cleft about two-thirds to the base; flowers usually purplish, 4-8 in the 

 raceme; stamens equalling the petals; berry 8-10 mm. in diameter, usually 

 densely glandular-hi.spid. K. lacustre panulum A. Gray. Mountains, among 

 rocks and along streams: Yukon — Alta.^Colo. — Utah. Mont.— Alp. My-Au. 



4. L. montigena (McClatchie) Rydb. A straggling shrub, 3-6 dm. high; 

 stems with short stout nodal spines, and more or less bristly; leaves 1-4 cm. wide, 

 reniform, pubescent, the divisions obovate to elliptic, incised; racemes rather 

 short and few-flowered; tube of the hypanthium glandular-bristly; sepals 3-4 mm. 

 long, veiny; berry densely glandular-bristly. R. lacustre rnolle A. Gray. R. 

 lentum (M. E. Jones) Cov. & Rose. R. montigenum McClatchie. High moun- 

 tains: N.M.— Calif.— B.C.— Mont. Mont.— Alp. 



3. RISES L. Currants. 



Unarmed shrubs. Leaves alternate, palmately veined and usually also pal- 

 mately lobed, plicate in vernation, mostly deciduous. Inflorescence several- to 

 many-flowered; pedicels jointed beneath the flowers, a pair of small bractlets 

 often present at the node. Flowers perfect or in some exotic species dioecious. 

 Hypanthium-tube more or less developed, from saucer-shaped to cyhndric. 

 Fruit a berry, with rather thin skin, with or without glands, never spiny, dis- 

 articulating from the pedicel. 



Hypanthium-tube rather poorly developed, saucer-shaped or open-campanulate. 

 Berry not glandular-hispid. 



Berry red, without glands; racemes drooping; bracts short-ovate. 



1. B. triste. 

 Berry black, with sessile glands; racemes erect; bracts subulate-linear. 



Racemes 6-12-flowered; bracts 2-5 mm. long; leaves firm, villous-pubescent 



beneath, with a shallow or no basal sinus. 2. R. hudsonianum. 



Racemes 2.5-.50-flowered; bracts minute, 1-2 mm. long; leaves tliin, essentially 

 glabrous, usually with a deep basal sinus. 3. R. petiolare. 



Berry glandular-hispid. 



Berry red; sepals 2-2.5 mm. long, glabrous without. 4. R. glandulosum. 



Berry black or dark-purple; sepals 3-4 mm. long, hairy without. 



Sepals without gland-hairs; berry with a bloom. 5. R. laxifloriwi. 



Sepals with gland-hairs; berry without a bloom. 6. R. color adense. 



Hypanthium-tube well developed, deeply campanulate to tubular. 



Fruit glabrous, black. 7. R. americanum. 



Fruit glandular-hispid. 



Hj"panthium-tube campanulate or urceolate; fruit black or blue. 

 Leaves glabrous or essentially so; fruit globose, with a bloom. 



Hypantliium-tube greenish wliite, about 1 mm. long, less than half as long 



as the sepals. 8. R. Wolfii. 



HypaiUhium-tulie rose-colored or purphsh, about 2 mm. long, more than 

 half as long as the sepals. 9. R. ncvadense. 



Leaves pubescent and usually very glandular; fruit ellipsoid, without a bloom. 



10. R. viscosissimum. 

 Hypantliium-tube cylindric; fruit red. 



Leaves merely glandular-pruinose, not hairy; flowers whitish. 



11. R. reniforme. 

 Leaves decidedly pubescent as well as glandular. 



Bracts cuneate-obovate, the rounded or truncate summit several lobed; 



flowers wliitish; styles pubescent. 12. R. cereum. 



Bracts oblong or rhombic, entire or glandular-dentate; flowers pinkish; 



styles glabrous. 13. R. inebrians. 



1. R. triste Pall. A shrub about 1 m. high; leaf-blades thin, reniform- 

 orbicular, 6-10 cm. wide, usually 3-lobed, rarely 5-lobed, dark green and glabrous 

 above, pale and pubescent or glabrate beneath, with conspicuous veins and 

 coarsely dentate-serrate lobes, cordate or rarelj' truncate at the base; racemes 

 somewhat glandular, usually shorter than the leaves; flowers more or less pur- 

 phsh; sepals obtuse, spreading; berry smooth, glabrous, red, 6-8 mm. in diameter. 

 R. albineniiim Michx. R.rubrum A. Gray, noth. Woods: Newf. — 'N.J. — S.D. 

 — Ore. — Alaska. Boreal. — Submont. My-Je. 



2. R. hudsonianum Richards. A shrub 1-L5 m. high; leaf-blades reni- 

 form, broader than long, 3-10 cm. wide, more or less pubescent and resinous- 

 dotted, their lobes ovate, obtuse or acutish, coarsely dentate; racemes 3-6 cm. 



