CHAP. LV. GROSSULA^CEJE. HMES. 987 



Rocky Mountains, in gravelly or sandy soils. A shrub, growing 2 ft. or 3 ft. 

 high, and flowering in April. Introduced in 1827. 



at 36. R. VISCOSI'SSIMUM Pursh. The very clammy black Currant. 



Identification. Pursh FL Amer. Sept., 1. p. 153.; Dougl. in Trans. Hort. Soc., 7. p. 511. ; Dun's 



Mill., 3. p. 191. 



Si/Himyu: Coreusma viscosissima Spach Ann, des Scicn. Nat., 1835. 

 Engrtuing. Hook. Fl. Bor. Amer., 1. p. 234. t. 74. 



Spec. Char., <$<: Leaves cordate, obtuse, 3 5-lobed, deeply crenated. Viscid 

 and glandular pubescence. Glands on both surfaces. Racemes erect, co- 

 rymbose. Bracteas linear-obovate, rather 

 shorter than the pedicels, which are clothed 

 with glandular hairs. Calyx tubularly cam- 

 panulate, with erectly spreading obtuse seg- 

 ments. Germens and fruit ovate-oblong, clothed 

 with viscid hairs. Berries oblong-ovate, black. 

 Flowers large and white. (Don's Mill., iii. 

 p. 191.) A native of North America, on the 

 Rocky Mountains, and in dry plains, in par- 

 tially shaded places towards the sources of the 

 Columbia; also on the summits of the hills 

 near the Spokan and Kettle Falls, at an ele- 

 vation of 8000 ft. above the sea. (Dougl. in 738 

 Hook. Fl. Bor. Amer.'} A shrub, attaining the height of from 4ft. to 8ft.; 

 producing its flowers in April and May. Introduced in 1826. " A very fine 

 and remarkable species." (Hook.} It is somewhat difficult to keep : the 

 only plants we know of it, in the neighbourhood of London, are in the 

 nursery of Mr. Cree, the author of Hortus Addlestonensis, at Addlestone, 

 near Chertsey, in Surrey. 



37. R. HUDSONIA^NUM Richardson. The Hudson's Bay black Currant. 



Identification. Richards in Frankl. First Journ., ed. 2. append, p. 6. ; Don's Mill., 3. p. 190. 

 Synonyme. R. petiolaTe Dougl. Hort. Trans., 7. p. 514. 



Spec. Char., fyc. Branches erect. Leaves 3-lobed, quite glabrous above, 

 full of resinous dots beneath, and, as well as the petioles, villous. Germens 

 dotted. Berries globose, glabrous, black. Racemes erect, pubescent. 

 Bracteas short. Segments of the calyx, which is campanulate, spreading. 

 Flowers small. Petals white. The fruit, and peculiar odour of the plants, 

 are those of R. nigrum. (Don's Mill., iii. p. 190.) It is a native of North 

 America, from Hudson's Bay to the Rocky Mountains, in the west, and 

 as far north as lat. 57, including the mountains of Columbia, about the 

 Kettle Falls. A shrub growing to the height of 3ft. or 4ft. Plants of 

 this sort are in the Horticultural Society's Garden. 



a 38. R. GLACIA'LE Wall. The icy black Currant. 



Identification. Wall. Cat, No. 6833. ; Don's Mill., 3. p. 189. 



Spec. Char., $c. Bracteas smooth. Leaves glabrous above, but with few 

 scattered bristly hairs beneath, cordate at the base, 3 5-lobed at the apex ; 

 lobes acute, serrated. Petioles long, serrated at the base. Racemes 

 drooping. Calyx campanulate. Petals longer than the calyx. Flowers 

 white. Berries black. (Don's Mill., iii. p. 189.) A native of Nepal, on 

 Emodi and Gosainthan ; growing from 4 ft. to 6 ft. high, and flowering 

 in April and May. Introduced in 1823. There is a plant of it against a 

 wall, in the Horticultural Society's Garden. 



a. Species or Varieties of Ribes belonging to the Division B of the Section 

 Ribesia, which have not yet been introduced. 



R. Bicberslcinn Berl. in Dec. Prod., 3. p. 482. ; Jt. cauc&sicum Bieb. ; has cordate, sharply serrated 

 leaves, having a strong scent, like those of R. nJgrum ; nodding racemes, minute petals, and black 

 berries. It is a native of Caucasus, and is, probably, only a variety of K. nigrum. 



R. viscofiiim Ruiz et Pav. has cordate, 5-lobed, rough, clammy, 5-ncrved leaves, and yellow flowers, 

 with small pale purple berries. It is a native of Peru, on rocks. 



