1906] Blanchard, Some Maine Rubi, — I 147 



favorable situations do not furnish bountiful crops in this section ami 

 pickers are neither plenty nor enthusiastic, but the blueberry pickers 

 are numerous and successful. 



Of the nine species and varieties of plants considered in this paper, 

 the first four are prostrate dewberries of the Procumhens class with edible 

 fruit and canes of nearly the same size throughout. The last five 

 belong to a class with stems thick at the base, tapering upward and 

 outward, erect at first, recurving and tipping like a Black Raspberry. 

 They have wide leaflets and the growth on old canes resembles that 

 of the dewberries. They are called "mongrels," "half-high" and 

 other expressive names. 



♦ Stems prostrate. True De\vl)erries of the Procumhens class. 

 -I- Prickles recurved, hooked. 



RuBUS PROCUMBEXS, Muhl. Plants completely prostrate, gland- 

 less, slightly pubescent, prickles strongly hooked; canes killing back 

 most of their length in unprotected places; leaves of moderate size, 

 3-foliate; inflorescence with a few nearly erect slender pedicels; 

 strongly tipping, /. e. rooting at the tip. 



New canes. Stems prostrate, 4 to S ft. long, greenish, terete, gla- 

 brous and glandless, hard, often branched, and late in August branch- 

 ing at the ends, the latter swelling and tipping vigorously. Prickles 

 short, strong, conspicuously hooked, quite numerous, 8 to 16 to the 

 inch of stem, not noticeably in lines. Leaves of moderate size, rather 

 thick, 4 to 5 in. long and wide, normally 3-foliate but often becoming 

 5-foliate, shining yellow-green on the upper surface, the few hairs 

 often disappearing with age, bright green below and slightly pubescent, 

 with hairs also on the large veins, ciliate on the edges. Leaflets 

 rhomboidal or oval, entire in outline, al)ruj)tly narrowed to a taj)er 

 point, rather coarsely and slightly doubly serrate-dentate or slightly 

 .serrate, the base entire; the middle one often nearly orbicular, 2 in. or 

 more broad, the side ones wide, more or less lobed on the lower side, 

 frequently divided, then cuneate at both ends and much narrower 

 than the middle one; the basal leaflets quite narrow and cuneate. 

 Petiole and petiolules rather slender, grooved, nearly or quite glabrous, 

 prickles short and much hooked; the petiolule of the middle leaflet 

 ^ in. long, the others sessile. 



Old canes. Badly killed back except in protected places, prickles 

 intact. Second year's growth consisting entirely of leafy, erect branches 

 or stemlets, onefrom the axil of each old leaf, all bearing inflorescence. 

 Branch stems 4 to 7 in. high, irregularly angled, considerably pubes- 

 cent, often quite so, glandless, prickles slender, not numerous, slanting 

 backward or hooked. Leaves 3-foliate or the upper ones unifoliate, 

 bright green on the upper surface, paler below; in texture and pubes- 



