8.0 FLORA OF JAMAICA Pilea 



petioles 3-7 mm. 1. ; inflorescence in the axils of the upper leaves, peduncles 

 glabrous, to 1-7 cm. 1. Male floivers sessile or subsessile. Perianth 

 1*6 mm. 1., ovoid ; segments coherent to level of dorsal appendage, broadly 

 ovate, the opposite pairs of unequal length ; dorsal appendage triangular, 

 nearly as long as rest of the perianth. 



41. P. silvieola Fawc. & Bendle in Journ. Bot. I. 181 (1912) ; 

 dioecious, herbaceous, shrubby below ; stems ascending, simple 

 or slightly branching, glabrous ; leaves of the same pair more or 

 less unequal, stalked, elliptical-ovate, somewhat shortly acuminate, 

 subcordate at base, coarsely serrate in the upper one-third to 

 two thirds, 3-nerved, nerves underneath connected reticulately ; 

 cystoliths on the upper surface linear, below thinner and 

 smaller, on male plant glabrous, on female plant sparsely 

 pilose on both sides, membranous ; stipules 5-6 mm. 1,, elliptical, 

 Avith amplexicaul base ; cymes paniculate, peduncle longer than 

 the petiole; male with peduncles 1-1-5 cm. 1., clusters dense- 

 flowered; female with peduncles 2*5-3 cm. 1., clusters few- 

 flowered. (PI. 2, f. 10.) Type in Herb. K York Bot. Gard. 



In crevices of rocks ; Peckham Woods, Upper Clarendon, 2500 ft., 

 Harris, Fl. Jam. 10,948. 



Stem 20-30 cm. 1., sometimes rooting below at the nodes, 2-3 mm. br., 

 densely covered with short broadly linear cystoliths, internodes l"5-3cm.l. 

 Leaves 5-3 cm. 1., 3-1 "5 cm. br., with the two lateral nerves produced to 

 about three-fourths of their length, the others not visible above ; petioles 

 8-22 mm. 1. Cymes solitary from axils of upper leaves, peduncles glabrous. 

 Male floivers subsessile or with pedicels to 1 mm. 1. Perianth 1*25 mm. L, 

 coherent at base ; lobes ovate with a long acuminate dorsal appendage, 

 about half its length. Female floivers sessile or subsessile with pedicels 

 to '3 mm. 1. ; larger lobe of perianth about "6 mm. 1., hooded, with short 

 subconical dorsal appendage about on a level with apex, lateral half as 

 long, broadly elliptical. 



42. P. nigreseens Urh. Symh. Ant. i 299 (1899); monoecious 

 or dioecious ; stems near the apex with short reddish tomentum ; 

 leaves of each pair equal or subequal, ovate or rhomboid, base 

 obtuse or subcuneate, apex obtuse, sometimes subacuminate, 

 3-nerved, deeply crenate except at the base, glabrous on the 

 upper surface, with short reddish tomentum on nerves under- 

 neath ; stipules ovate, persistent ; cymes unisexual, male laxly 

 capitate, female paniculate, longer or shorter than the leaves. 

 (PI. 3, f. 25.) 



Macfadyen ! McNab ! Blue Mt. Peak, about 7000 ft. ; near Morse's 

 Gap, 4800 ft. ; Harris ! St. George, Watt ! Fl. Jam. 5425, 7350 ; Morse's 

 Gap, 5000 ft., G. Nichols ! 



Stems woody below, erect, 15-30 cm. 1. Leaves 1*5-5 "5 cm. 1., 

 1-3 cm. br. ; nerves reaching to the upper third; petiole '5-2 cm. 1., 

 cystoliths linear, conspicuous on upper surface. Stipules 3-4 mm. 1. 

 Cymes, peduncle 1-7 cm. 1. Male flowers stalked, pedicels 1-1*5 mm. 1. ; 

 perianth obovate-globose, 1*4 mm. 1., segments elliptical, dorsal appendage 

 3 mm. 1., broadly apiculate. Female flowers subsessile. Achene ovate, 

 with brown dots, "8-1 mm. 1., projecting by one-half beyond the median 



