262 



FLORA OF JAMAICA 



Ruhus 



Naturalized in the Blue Mts., Cinchona, Harris ! Fl. Jam. 9131. — 

 Native of temperate and subtropical Himalaya, also of mountains of Khasia, 

 Birma, and Ceylon, and of Yunnan. 



A tall erect nrickly bjish, attaining a height of 15 ft., and forming dense 

 thickets. Leajiets 5-10 cm. 1. Petals white. Fruit yellow, edible and 

 pleasantly flavoured. 



Introduced by one of us into Jamaica in 1894.] 



5. FRAGARIA L. 



Herbs, becoming perennial at the base, generally bearing 

 stolons. Leaves alternate, 3-foliolate ; leaflets obovate, incise- 

 serrate. Stipules adnate to the base of the petiole, sheathing. 

 Scapes erect, with a few flowers in cymes. Flowers polygamo- 



I'ig. 112. — Fvagaria vesca L. 



A, Plant X |. E, Achene X 12. 



B, Flower seen from below, nat. size. F, Ditto cut lengthwise x 12 ; c, cotyledon 



C, Flower cut lengthwise X 4. r, radicle. 



D, Carpel cut lengthwise X 20. 



dicBcious'. Receptacle obconical, produced into a hemispherical 

 or convex central portion on which the carpels are borne. Epi- 

 calyx of 5 segments. Sepals 5, persistent, spreading, valvate. 

 Petals 5. Stamens about 20. Carpels numerous, separate ; 

 styles ventral, persistent ; ovule solitary, ascending. Achenes 

 numerous, minute, generally partially embedded in the receptacle 

 which becomes large and fleshy or spongy as the fruit lijieDS, 

 deciduous, dry. Seed ascending ; cotyledons plano-convex ; 

 radicle superior. 



