3024 



RUBUS 



RUBUS 



hairy on veins beneath: fls. solitary and terminal on 

 short shoots, white, about 1 in. across. N. Calif, and 

 Idaho to Alaska; reported in Japan. By Focke referred 

 to the subgenus Dalibarda; if kept in a distinct genus, 

 the plant becomes Dalibarda pedata, Steph. Interest- 

 ing as a rock-garden plant. 



4. stellatus, Smith, produces an edible fr. prized in 

 Alaska, where it is native, as well as in Yukon and 

 Kamchatka: st. simple and herbaceous, only a few 

 inches long, 1-fld.: Ivs. cordate, 3-lobed or 3-parted, 

 reniform in outline, pubescent on both sides or glabrate 

 in age, simply or doubly serrate: fls. solitary and ter- 

 minal, rose-colored: fr. red, globose, with 20 or more 

 drupelets, said to be known locally as a dewberry. 



5. xanthocarpus, Bur. & Franch. (R. Potaninii, 

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

 sts. pilose and weak-spiny: Ivs. pinnately 3-foliolate, 

 the Ifts. ovate, acute or obtuse, strongly and unequally 

 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 Szechuan and Yunnan. Intro, into the 

 U. S. in 1898 by the Dept. of Agric. through N. E. 

 Hansen, to be tried for its edible raspberry-like fr. It is 

 said to provide a good cover; fairly hardy in Minn; it 

 appears not to have found favor in this country and its 

 value is doubtful. 



6. simplex, Focke. Small plant, 1-2 ft., making a 

 roundish densely branched bush: sts. simple, puberu- 

 lous, sparingly bristly: Ifts. 3, hairy above, puberulous 

 on the veins beneath, unequally mucronate-serrate, 

 2-4 in. long, the lateral ones short-stalked, the terminal 

 on a stalk %-l in. long: fls. axillary, few, short-pedi- 

 celled, white, over %in. across; petals scarcely exceed- 

 ing the triangular acuminate sepals: fr. edible, orange- 

 red. Cent. China. H.I. 20:1948. Probably useful as 

 a subject for rock-gardens. 



Section III. DALIBARDASTRUM. 



7. tricolor, Focke (R. polytrichus, Franch., not Prog.). 

 A distinct dwarf species with prostrate spineless brown- 

 yellowish-hairy sts., growing several feet in a season 

 under moist shady conditions: Ivs. simple, about 3 in. 

 long, cordate, evergreen, sharply toothed, dark green 

 above but with rows of hairs between the chief veins, 

 white-tomentose beneath and with brown bristle-hairs 

 on the rib and chief veins: fls. white, 1 in. across, on 

 erect fl.-sts. : fr. rather large, bright red. W. China, up 

 to 10,000 ft. Probably worthy as a wild-garden and 

 rock-garden subject. 



Section IV. ANOPLOBATTTS. 



A. Lvs. mostly 7-lobed. 



8. 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 pedun- 

 cles villous: berry of medium size, scarlet, with pointed 



3488. Rubus deliciosus, from the Rocky Mountains. (No. 9.) 



3489. Clump of Rubus odoratus (flower XJ4). No. 10. 



drupelets. Japan. Sparingly intro. and prized for its 

 bright autumn foliage (whence the name "fire rasp- 

 berry"). 



AA. Lvs. 5- or less-lobed. 



B. Peduncles mostly 1-fld. 



9. deliciosus, James (R. Roezlii, Regel. Bossekia 

 deliciosa, A. Nels. Oreobatus deliciosus, Rydb.). ROCKY 

 MOUNTAIN FLOWERING RASPBERRY. Fig. 3488. Com- 

 pact, bushy grower, reaching 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 larger, soft drupelets like those of a red rasp- 

 berry, edible but not esteemed for eating. Canons in 

 the mountains of Colo., reaching 8,000 ft. elevation. 

 B.M. 6062. G.C. II. 15:537. R.H. 1882, p. 356; 1903, 

 p. 447. F.S. 23:2404. Gn. 18:358; 29, p. 336; 34, p. 

 231; 45, p. 74; 46, p. 293; 73, p. 64. Gt. 47:1451; 52, 

 pp.355, 356. Gng. 3:325. G.M. 41:508; 45:143. G. 

 2:491; 8:650; 36:411, 777. The finest of native flow- 

 ering raspberries, and deserving to be widely known. 

 Hardy in Mass. The fls. resemble single roses. 



BB. Peduncles several- to many-fid. 



10. odoratus, Linn. (R. grandifolius, Salisb. Bossekia 

 odordta, Greene. Rubacer odoratum, Rydb.). FLOWER- 

 ING RASPBERRY. MULBERRY (erroneously). Fig. 3489. 

 Strong-growing plant, with the shreddy canes reaching 

 3-6 ft.: Ivs. very large, pubescent beneath, 3-5-lobed, 

 the lobes triangular-acuminate with broad triangular 

 teeth and sharp-serrate: fls. 1-2 in. across, rose-purple, 

 several to many in the cluster, the sepals with a long 

 point, the peduncles and pedicels glandular-pubescent: 

 berry flattish and broad (%in. across), rather dry, light 

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

 Ala. Gn. 34, p. 230. B.M. 323. J.H. III. 31:133. 

 F.E. 22 : 557. Var. columbianus, Millsp. (Rubacer 

 columbianum, Rydb.), native in W. Va., has lanceolate 

 incised-dentate or doubly dentate lobes. Var. albidus, 

 growing with the type, has whitish fls. and lighter- 

 colored bark. R. odoratus prefers rich shady woods and 

 banks. It makes a bold subject in a foliage mass, and 

 its fls. are nearly as large as many single roses, although 

 the color is less bright. It spreads rapidly from the 

 root and overtops weaker plants. 



11. parvifldrus, Nutt. (R. nutkanus, Moc.. R. Idcer, 

 Kuntze. Bossekia parviflora, Greene. Rubacer parvi- 



