484 



ARBORETUM ET FRUTICETUM BRITANNICUM. 



resembling those of the common sycamore, and nearly as large, 

 to be desh-ed that it cculd be introduced into British gardens. 



It is much 



!3 



The very clammy black Currant. 



878. R. Tiscosissimum. 



36. R. viscosi'ssiMUM Pursh 



Identificntion. Pursh Fl. Amer. Sept., l.p. 1G3. ; Do 

 Synonyme. Corebsma viscosfssima Spach Ann. des Sc 

 Engravings. Hook. Fl. Bor. Amer., 1. p. 234. t. 74. ; and out Jig. 878. 



Sj^ec. Char., S^c. Leaves cordate, obtuse, 3 5- 



lobed, deeply crenated. Viscid and glandular 

 pubescence. Glands on both surfaces. Ra- 

 cemes erect, corymbose. Bracteas linear -ob- 

 ovate, rather shorter than the pedicels, which 

 are clothed with glandular hairs. Calyx tubu- "^^^ 

 larly campanulate, with erectly spreading obtuse 

 segments. Gcnnens and fruit ovate-oblong, ^'j 

 clothed with viscid hairs. Berries oblong-ovate, 1^ 

 black. Flowers large and white. (Don's Mill.) 

 An upright shrub. North America, on the 

 Rocky Mountains, towards the sources of the 

 Columbia ; also on the summits of the hills 

 near the Spokan and Kettle Falls, at an eleva- 

 tion of 8000 ft. above the sea. Height 4 ft to 8 ft. Introduced in 1826. 

 Flowers whitish or yellowish ; April and May. Fruit black; ripe in July. 



A very fine and remarkable species, somewhat difficult to keep. 



j 37. R. (n.) 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. petiolare Dougl. Hort. Trans. 7. p. 514. 



Engraving. 0\xr fig. 879. in flo.ver, andyj^. 8S0.in fruit, from a specimen in Dr. Lindley's herbarium. 



Spec. Char., c'j-c. Branches erect. 

 Leaves S-lobed, quite glabrous 

 above, full of resinous dots 

 beneath, and, as well as the pe- 

 tioles, villous, (iermens dotted. 

 Berries globose, glabrous, 

 black. Racemes erect, pubes- 

 cent. Bracteas short. Seg- 

 ments of the calyx, which is 

 campanulate, spreading. Flow- 

 ers small. Petals white. The 

 fruit, and peculiar odour of 

 the plants, are those of R. 

 nigrum. (Doiis Mill.) An 

 erect shrub. Nortli America, 

 from Hudson's Bay to the 

 Rocky IVIountains, in the west, 

 and as far north as lat. 57, 

 including the mountains of 

 Columbia, about the Kettle 

 Falls. Height 3 ft. to i ft. In- 

 troduced in ? 1820. Flowers whitish ; April and May. 

 in July. Horticultural Society's Garden. 



R79. A. (n.) hudsoniknum. 



880. 



H. (n.) hudsoniinom 



Fruit black; ripe 



S 38. R. GLACIA^LE JValL The icy black Currant. 



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



Engraving. Our fig 81. from a specimen in the Linnsan herbarium. | 



Spec. Char., t^r. Bracteas smooth. Leaves glabrous above, but with fewj 

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



