Tas. 8264. 
RUBUS CANADENSIS. 
Eastern North America. 
id 
Rosaceae. Tribe RUBEAE. ; att 
Rusus, Linn.; Benth, et Hook. f. Gen. Plant, vol. i. p. 616 Fa focke in -Engl. & 
Prantl. Pflanzenfam. vol. iii. pars iii. p. 28. 2 
« 
Rubus (Eubatus) canadensis, Linn. Sp. Pl. ed. 1(1753), p.494; Torr. & Gray,» 
Fl. N. Amer. vol. i. p. 455; Bailey, Cyclop. Amer. Hort, vol. iv. p. 1§83;, 
Robins, & Fernald in Gray, New Man. N. Amer. Bot. ed, 7, p. 490; inter 
species Americanas caulibus inermibus vel leviter aculeolatis, foliis sub- 
glabris, floribus in racemis dispositis distinctus. ber 
Frutex erectus vel suberectus. Caules inermes vel interdum leviter actleolati, 
subteretes, crassiusculi, brunnei; novelli minute puberuli; internodii 
5-7 em. longi. Folia 3-5-foliolata; petioli glabri, 4-8 cm. longi; foliola 
ovata vel elliptico-ovata, acuta vel caudato-acuminata, crebre et argute 
dentata, utrinque glabra, lateralia subsessilia, 5-8 em. longa, 2-5 em. lata, 
terminalia longe petiolulata, 10 cm. longa, 5-6 em. lata; stipulae lineares, 
acuminatae, circa 1 cm. longae. Racemi 6-8 cm. ’longi, laxi. Bracteae 
lanceolato-oblongae, acutae, 7-8 mm. longae. © Pedicelli graciles, sub-» 
pubescentes, 2-3 cm. longi. Flores 2-3 em. lati: Sepala deltoideo-ovata, 
acuminata, 5 mm. longa, puberula, albo-marginata. Petala obovata, alba, 
1-1:5 cm. longa. Stamina numerosissima; filamenta glabra, 5-7 mm. 
longa. Carpellae glabrae; styli glabri, 2°5 mm. longi. Drupae succulentae, 
nigrae.—R. Millspaughii, Britton in Bull. Torr. Club. vol. xviii. (1891), 
p. 366; Britt. & Br. Il. Fl. N. Amer. vol. ii. p. 203, with fig. R. amabilis, 
Blanchard in Rhodora, vol. viii. (1906), p. 173.—R. A. Roure. 
The plant here figured is one of the most distinct and 
attractive of the many Rubi recently brought into cultiva- 
tion. The Kew example was presented to the national 
collection by Professor Sargent of the Arnold Arboretum 
in 1902, and has since its introduction been cultivated 
under the name Ff. Millspaughii proposed by Dr. Britton. 
Professor Bailey has, however, definitely identified it with 
the true #. canadensis of Linnaeus, and this name is here 
accordingly adopted. Popularly known as the “ Thornless 
Blackberry,” &. canadensis appears to extend in a wild 
state from Eastern Canada, through the highlands of New 
England, New York and Michigan to the mountains of 
North Carolina. In habit our plant resembles the common 
Raspberry, forming sturdy, erect stems 6 or 7 ft. high? The 
Jury, 1909. 
