64 FLOEA OF JAMAICA Pilea 



Cuba, Hispaniola, Porto Kico, St. Cruz, Guadeloupe, Martinique, Costa 

 Rica. 



Stems 1-7 cm. 1. Leaves 1-3 mm. 1. and br. Male flowers, with pedicel 

 to 2 mm. 1., perianth 1-2-1 "5 mm. 1., dorsal appendage almost obsolete, 

 in the form of a flat hairy tubercle. Female flcwer, perianth about 

 •1 mm. 1., with triangular subequal segments. Achene to •? mm. L, 

 ovate-elliptical, more or less muriculate, with somewhat transparent 

 margin. 



3. P. nudieaulis Wedd. in Ann. Sci. Nat. ser. 3, xviii. 208 ; 

 dioecious, glabrous ; stem jointed, naked below ; leaves linear- 

 lanceolate or narrowly lanceolate, rather acute, entire, 3-nerved, 

 basal nerves near the margin, reaching nearly to the apex ; 

 cystoliths on upper surface linear ; stipules very short, triangular ; 

 male cymes varying in length up to half as long as leaf ; female 

 cymes not much longer than the petioles. — Griseh. op. cit. 156; 

 Wedd. in DC. Prodr. xvi pt. 1, 111. P. nudieaulis Wedd. 

 P lanceolata Griseb. loc. cit. Urtica nudieaulis Sw. in Vet. 

 Eandl. Stockh. vi. 36 (1785) & Fl. Ind. Occ. 311. (PI. 1, B, f. 3.) 

 Type in Herb. Mus. Brit. 



Brotighton ! Masson 1 Swartz ; Macfadyen 1 ArntuUy ; Cinchona ; J.P. 

 1210, 1257, Hart] Content Road; Westphalia Road, 3000 ft.; Hope 

 Grounds, 700 ft. ; Harris 1 Fl. Jam. 5257, 7454, 8390.— Cuba. 



Herb ; stem erect or ascending, i3-9 dm. high, simple or with few 

 branches. Branches slender, straight, erect, covered with oblong cystoliths. 

 Leaves 4-8(-10) cm. 1., 3-10(-14) mm. br. ; cystoliths on upper surface 

 very numerous, unequal, intricate ; on lower surface conspicuous, larger, 

 scattered, subequal, straight or curved ; petiole 3-5 mm. 1. ; stipules to 

 •6 mm. 1. Male cymes to 4 cm. 1., male floivers "white " (Swartz), stalked ; 

 perianth in bud -7 mm. 1., dorsal appendage mucronate, about '1 mm. 1. 

 Female cymes '6-1 cm. 1. Achene •& mm. 1., smooth, roundish-ovate 

 slightly projecting beyond the median perianth-segment ; median segment 

 •75 mm. 1., somewhat rhomboid, striolate-keeled ; dorsal appendage level 

 with apex, lateral segments elliptical, striolate, •3- '4 mm. 1. 



4. P. lanceolata Wedd. in Ann. Sc. Nat. ser. 4, i. 208 (1854) ; 

 monoecious, quite glabrous ; stem leafy below ; leaves narrowly 

 lanceolate, acuminate, entire, 3-nerved, basal nerves very near 

 the margin ; stipules persistent, ovate-triangular, blunt, mem- 

 branous ; cystoliths on upper surface punctiform ; cymes uni- 

 sexual or androgynous, shorter than the leaves ; achene ovate, 

 very minutely granulate. — Wedd. in DC. Prodr. xvi. pt. 1, 110 

 (excl. syn. P. nudieaulis Griseb.). Urtica lanceolata Lam. Encyc. 

 iV 639 (1797). (PI. 1, B, f. 4.) 



Wrightl — Hispaniola, Dominica, St. Vincent. 



Stem 1-2 dm. high ; rhizome creeping ; stem erect, scarcely branching, 

 slender. Leaves 3-5 cm. 1., 3 '5-8 mm. br., green on upper surface, grey 

 beneath ; cystoliths very numerous on both sides, underneath larger, linear, 

 intricate ; petiole scarcely 1 mm. 1. ; stipules 2 mm. 1. Female cymes 

 consisting of a few clusters, many-flowered and dense ; peduncle longer 

 than the petiole. Achene ovoid, '75 mm. 1.; median segment as long as 

 achene, about twice as long as lateral segments ; dorsal appendage level 

 with apex. 



