DEWBERRY: BLACKBERRY .315 



lanceolate leaves, and purplish-pink flowers appearing 

 early, before the foliage, proterogynous, with half-exposed 

 honey. 



Flowers large, single or in pairs, on short pedicels, 

 from axillary buds. Calyx-tube purplish, cup-shaped; 

 sepals green, dashed with red, glabrous. Petals pink. 

 Fruit dry, green, villous, otherwise plum-like but de- 

 hiscent. 



Pistil of many separate carpels i.e. apo- 

 carpous. Sepals persistent. 



f~~J Calyx of widely spreading sepals, fused [For 

 below, buds not forming a tube. Pollen (LU /Z7) 

 ellipsoid, punctate. Fruit a head of small see P" " 

 drupels, on a conoid receptacle. (Rubus.) 



Fruitlets adhering to the receptacle. 

 Shoots usually scrambling, prostrate or 

 more or less arching, and armed with 

 hooked claw-like prickles. 



Jf Stems slender, terete, and glaucous. 

 Fruits bluish with a waxy bloom. 

 Sepals narrow and closing over the 

 fruits. 



Rubus Ccesius, L. Dewberry. Bush, with slender 

 shoots. Flowers in short few-flowered cymes. 



Pollen grey-white, ellipsoid, punctate, with 3 folds, 

 about 38 p long. Homogamous, with abundance of honey. 

 Fruit black, pruinose, acid, adherent to the receptacle. 



$$ Stems usually coarser, angular and 

 not glaucous. Fruits devoid of bloom. 



Rubus fruticosus, L. Blackberry, Bramble (Fig. 128). 

 Prickly scrambler, or trailing bush. 



Flowers in cymes, usually grouped into racemose in- 



