1906] Blanchard, Some Maine Rubi, — I 151 



has, too, a regular raceme and is so loaded that the fruit lies on the 

 ground. 



Rubus arenicolus, n. sp. Plants perfectly prostrate, glandless 

 hut vcrv pubescent, prickles long and straight, tipping readily. In- 

 florescence a corymbose cyme, flowers large and very conspicuous. 

 Leaves small, 3-foliate, leaflets nearly orbicular. Prefers a sandy 

 or gravelly home. 



Xew canes. Stems very prostrate, brown, terete, 5 to 10 feet long, 

 glabrous and glandless, the emls swelling and tij^ping in September. 

 Prickles long, nearly -^-^ iji., straight with a slight backward slant or 

 none, never hooked except near the tipping end, numerous, 10 to 20 

 to the inch of stem, not noticeably in lines. Leaves small and quite 

 thick, 4i in. long by 3^ in. broad, 3-foliate with an occasional leaf 

 5-foliate, light yellinv-grecn with abundant appressed hairs on the 

 upj)er surface, whiter beneath with copious pul)escence and velvety 

 to the touch, slightly ciliate. Leaflets nearly or quite orbicular, out- 

 line nearly entire, very short-pointed, finely and doubly serrate below, 

 serrate-dentate above'; the side ones more or less lobed on the lower 

 side. Petiole and petiolules stout, reddish, glandless, very pubescent, 

 deeply grooved; prickles long, slender, numerous, slightly hooked 

 or straight; the petiohile of the middle leaflet i in. long, the side ones 



sessile. 



Old canes. Stems slightly killed back, prickles intact. Growth 

 of second year consisting of erect, leafy fruit branches, 3 to 6 in. long, 

 decreasing regularlv in length from the l)ase of the stem, one from 

 each old leaf axil, \\xis zigzag, irregularly angled, green, very pubes- 

 cent, glandless, prickles slender, straight or slightly hooked. Leaves 

 small, 3-foliate those of the inflorescence unifoliate, in color texture 

 and pubescence like those on new canes. Leaflets broad-oval about 

 1 in. long and f in. wide, broad-pointed at each end, generally sharply 

 serrate or serrate-dentate; the unifoliate leaves often very wide, 

 fre(iuentlv nearly cordate. Petiole and petiolules green, very pubes- 

 cent, i)rickles slender, hooked; the middle leaflet only stalked. In- 

 florescence an irregular cyme with 4 to 6 ])edicels, very pubescent, 

 glandless, with mnnerous long, slender, straight prickles, set perpentlic- 

 ularlv to the pedicel. Flowers appearing the first week in July large 

 and showy, 1^ in. broad, petals broad oval or obovate, two-thirds as 

 wide as long. Se])als white-woolly, mucronate. Fruit broad-oblong, 

 about fin. high and broad, drupelets large, x\ to \ in. in diameter. 

 Three measured and counted: ^\ in. high by /^ in. broad, 19 drupelets; 

 i in. bv h in-. bS drupelets; t\ i"- by t in., 22 drui)elets. Very pro- 

 ductive a'nd edible. Fruiting season from August 10 to August 20. 

 ()])en, sandv places. 



Tvpe stations: The railroad bank midway between Kennebunk 

 depot and Parsons de])ot, Maine. Abundant around the Kenne- 

 bunk town gravel-pit and in the highway below it, and at the 



