Pilea URTICACEiE 69 



On limestone rocks ; near Troy, 2000 ft., Harris ! Fl. Jam. 8533. 



Shrubby; stcvi much branched, 2-3 dm. high. Larger leaves 

 1-2-2 cm. 1., &-! cm. br. ; smaller leaves '5-1 cm. 1.; nerves reaching 

 about the upper third of the leaf ; cystoliths linear-fusiform, conspicuous 

 on upper surface, smaller and much more numerous beneath ; petioles 

 4-1 cm. 1., hirsute with brownish hairs. Stipules roundish, 3-4 mm. 1., 

 glabrous, ferruginous (when dry), persistent. Male flowers white; perianth 

 7 mm. 1.; dorsal appendage small, tuberculate. Achene 1*1 mm. 1., 

 elliptical, not margined, minutely spotted, projecting beyond the median 

 segment by half its length; median segment "75 mm. 1., lateral segments 

 slightly shorter than the median. 



15. P. saxicola Urh. Symh. Ant. v. 311 (1907); monoecious 

 shrub ; stems branching, glabrous ; leaves of each pair equal or 

 unequal, the larger stalked (the smaller subsessile), oblanceolate 

 to obovate, base cuneate, apex obtuse, larger two or three times 

 as large as the smaller, 3-nerved ; cystoliths linear, large on 

 upper surface, smaller and more numerous beneath, glabrous, 

 crenate in the upper margin ; stipules small, semiorbicular or 

 semioval, persistent ; cyme stalked, small, consisting of 13 few- 

 flowered androgynous or female heads. (PI. 3, f. 4.) 



On rocks in woodland; near Troy, 1800-2200 ft., Harris \ Fl. Jam. 

 8540, 8700. 



Stems rooting at base, 2-5-3 dm. high. Leaves, larger -8-1 '8 cm. 1., 

 6-'8 cm. br. ; petiole 1-7 mm. 1. Stipules 1-1*5 mm. 1. Peduncle "5-1 

 cm. 1. Male flowers (not seen by us), pedicel 1-1*5 mm. 1.; perianth 

 4 mm. 1., 3-partite almost to the base; stamens 3. Female floicers, 

 pedicel '5-1 mm. 1. Achene elliptical-ovate, 1 mm. 1.; median segment 

 about '6 mm. 1., broad, oblong, apex truncate ; lateral segments not much 

 shorter, ovate-triangular. 



16. P. Wullsehlaeg-elil Urh. Spnh. Ant. v. 310 (1907); 

 moncecious shrub ; stems branching, glabrous ; leaves of each 

 pair equal or unequal, oval-elliptical, ovate or roundish, base and 

 apex obtuse or rounded, 5-nerved, glabrous or sometimes sparingly 

 pilose on the nerves beneath, serrate in the upper two-thirds ; 

 stipules ovate or broadly ovate, persistent ; cymes long-stalked, 

 small, bearing 1-3 few^-flowered heads, unisexual or androgynous, 

 P. diffusa Griseh. op. cit. 159 (1859) (in part), (non Wedd.). 

 (PI. 3, f. 5.) Type at Munich. 



On rocks ; Fairfield, Widlschlaegel, 1016 ! Somerset Woods, near Man- 

 deville. Hams d; Britton\ Fl. Jam. 10,604, 10,611. 



*S^c? rooting below. Leaves '7-3 cm. 1., 7-2cm. br. ; nerves extending 

 to two-thirds of limb ; cystoliths linear, conspicuous on upper surface, 

 smaller and more numerous beneath; petioles 3 mm. -2 cm. 1. Stipules 

 3-4 mm. 1. Peduncle "5-1 '5 cm. 1. Male flowers, pedicel 1*5-3 mm. 1. ; 

 perianth about 1 mm. 1., shortly campanulate, dorsal appendages short, 

 broad. Female flowers subsessile, ov pedicel *5 mm. 1. ; periayith, segments 

 3, the larger *8-l mm. 1., lateral *5-*6 mm. 1. Achene somewhat broadly 

 ovate, red, brown-punctate, 1 mm. 1. 



17. p. clandestina Wedd. in DC. Prodr. .xvi. pf. 1, 120 

 (1869); moncecious, glabrous; leaves of the ame pair very 



