1580 



RUBUS 



2193. Rubus deliciosus, from the Rocky Mountains. 



prickles, glabrous or nearly so: Ivs. thin and soft, light 

 green with 3 or 5 ovate or rhombic-ovate, coarsely ser- 

 rate Ifts fls 1-3 on each peduncle, small and white, 

 the calyx reflexed: fr. small, reddish. Cold swamps, 

 N. J. west and north. -Offered as a rock garden plant 

 for moist places. 



3. xanthocarpus, Bur. & Franchet (R. Potanini, 

 Regel). Trailing, the stems dying back every year, the 

 stems pilose and weak-spiny; Ivs. pinnately 3-foliolate, 

 the leaflets ovate, acute or obtuse, strongly and un- 

 equally dentate, the terminal one twice larger than the 

 others : fls. solitary or twin in the axils of the upper Ivs. , 

 the peduncle and calyx weak-prickly, the petals white: 

 fr. large, ovate, bright yellow, fragrant and palatable, 

 the calyx persistent China; discovered in 1885 in the 

 Province of Kansu, 40 north latitude, and later found 

 in provinces Sze-Chuen and Yun-nan. Int. into the 

 U. S. in 1898 by the Dept. of Agric. through Professor 

 N. E. Hansen, to be tried for its edible raspberry-like 

 fruit. At Brookings, S. Dakota, the plants suffered from 

 the phenomenal winter of 1898-9, but mulched plants 

 have subsequently endured the winters well. 



SECTION 3. ANOPLOBATUS. 

 A. Lvs. mostly 7-lobed. 



4. trifidus, Thunb. FIRE RASPBERRY. Strong-grow- 

 ing and erect, 7-10 ft. tall: Ivs. large, palmately ribbed. 

 3-5- or even 7-cleft, serrate: fls. subsolitary, the pe- 

 duncles villous: berry of medium size, scarlet, with 

 pointed drupelets. Japan. Sparingly introduced, and 

 prized for its bright autumn foliage (whence the name 

 "Fire Raspberry"). 



AA. Lvs. 5- or less-lobed. 

 B. Peduncles mostly 1-fld. 



5. deliciosus, James. ROCKY MOUNTAIN FLOWERING 

 RASPBERRY. Fig. 2193. Compact, bushy grower, reach- 

 ing 5 ft. : Ivs. large, orbicular or reniform, shallowly 

 3-5-lobed, unequally serrate, somewhat glandular: fls. 

 borne in great profusion, pure white, 1-2 in. across, in 

 early summer and continuing for a long season: berry 

 hemispherical, purplish or wine-color, with large, soft 

 drupelets like those of a red Raspberry, edible but not 

 esteemed for eating. Rocky Mountains, reaching 8,000 

 ft. elevation. B.M. 6062. G.C. II. 15:537. R.H. 1882, p. 

 356. F.S. 23:2404. Gn. 18:253; 29, p. 336; 34, p. 231; 45, 

 p. 74; 46, p. 293. Gt. 47:1451. Gng. 3:325. G.M. 41:508. 

 One of the finest of native flowering Raspberries, and 

 deserving to be known. Hardy in Mass. The fls. re- 

 semble single roses. 



BB. Peduncles several- to many-fid. 



6. odoratus, Linn. FLOWERING RASPBERRY. MUL- 

 BERRY (erroneously). Fig. 2194. Strong-growing plant, 

 with the shreddy canes reaching 3-6 ft. : Ivs. very large, 

 pubescent beneath, 3-5-lobed, the lobes pointed, mar- 

 gins serrate: fls. 1-2 in. across, rose-purple, several to 



RUBUS 



many in the cluster, the sepals with a long point, the 

 peduncles and pedicels glandular-pubescent: berry flat- 

 tish and broad (% in. across), rather dry, light red, 

 edible but not valued. Nova Scotia to Mich, and Georgia 

 (Fla. ?). Gri. 34, p. 230. B.M. 323. J.H 111.31:133. 

 Prefers rich shady woods and banks. It makes a bold 

 subject in a foliage mass, and its fls. are nearly as large 

 as single roses, although the color is less bright. It 

 spreads rapidly from the root and overtops weaker plants. 



7. parvifldrus, Nutt. (R. Nntkanus, Moc.). Differs 

 from the last in having white fls. in few-fld. clusters 

 and less glandular peduncles. N. Mich, to the Pacific 

 coast and southward in the Rockies: the western rep- 

 resentative of R. odoratus. B.M. 3453. B.R. 10:1368. 

 Gn. 45, p. 75. 



SECTION 4. BATOTHAMNUS. 

 A. Lvs. simple, but more or less lobed. 



8. microphyllus, Linn. f. (R. palmatus, Thunb.). 

 Spreading, often slender-stemmed plant growing 4 or 5 

 ft. tall, with many short, but stout nearly straight 

 spines: Ivs. rather small, 2-3 in. long as a rule, narrow- 

 ovate-acuminate or sometimes nearly triangular-ovate- 

 acuminate, rather deeply 3-5-lobed and the middle lobe 

 long and acuminate, the margins very sharp serrate: 

 tts. white, nearly or quite '% in. across, with broadly 

 ovate petals: fr. small (red ?), of little value. Japan. 

 Sparingly introduced as an ornamental plant, but little 

 known here. The "Mayberry." introd. by Luther Bur- 

 bank, is said to be a hybrid between this species and 

 the Cuthbert Raspberry (R. strigosus). The Mayberry 

 is described as producing a large yellow edible berry, 

 ripening in advance of the Strawberry. 



9. crataegrifolius, Bunge. Fig. 2195 (after Card). Strong, 

 erect or diffuse much - spreading plant (3-5 ft.), with 

 terete reddish glabrous canes that bear few and small 

 straight spines: Ivs. oblong-ovate to cordate-ovate, acu- 

 minate, 3-5-lobed, and the margin coarsely serrate and 

 notched: fls. white, in small clusters terminating slen- 

 der leafy shoots, about % in. across: fr. small, orange- 

 red, of no value. Japan. An excellent plant for hold- 

 ing banks and for covering waste places, and giving 

 fine deep reds in the fall. Perfectly hardy in central 

 New York. Burbank's "Primus" is hybrid of this and 

 R. vitifolius, the latter furnishing the seed. 



10. Savatieri (R. morifdlius, Sieb , Franc h. & Savat. 

 Enum. PI. Jap. (1875), not Muell. 1858). Differs from 

 R. cratcegifolius by its more numerous and stronger 

 prickles, the leaves villous beneath and deeply cordate 

 at base, shorter petioles and shorter and thicker pedi- 

 cels. Southern Japan. Offered by dealers in Japanese 

 plants, who speak of its pretty fruit ripening in July. 



2194. Rubus odoratus. (Flower X %. 



AA. Lvs. 3-foliolate. 



11. spectabilis, Pursh. SALMONBERRY. Fig. (JO, Vol. 

 I. Strong- growing, reaching 5-15 ft., glabrous, the 

 spines few or often none, weak: Ivs. of 3 ovate-acumi- 

 nate Ifts., which are doubly serrate toothed and some- 



