178 THE JOURNAL OF BOTANY 



simplici vel ramoso, glabro. Folia ejusdem paris inaequalia ellip- 

 tica vel anguste elliptica, breviter vel longe acuminata, acuta, 

 basi emarginata, integerrima, trinervia, utrinque glabra vel supra 

 sparse pilosa, nervis infra pubescentibus, margine glabro vel sparse 

 ciliato ; cystolithis in pagina superiore minutis, prominentibus, 

 conspicuis, inferiore minutis, inconspicuis inspersa. StijndcB 

 deciduae, breves, lunares. CymcB paniculatse, androgynae, pedun- 

 culo petiolo breviore interdum paullo longiore. P. ciliaris var. 

 BivoricB Wedd. in DC. Prodr. xvi. pt. 1, 114 (1869) (in part). 

 P. Parietaria Griseb. Fl. Br. W. Ind. 156 (excl. syn. P. Bivorice). 

 Types in Herb. Mus. Brit., in Herb. Kew., and in Herb. Jam. 



Stem to 9 dm. high. Leaves l-5-7"5 cm. L, 1-2-5 cm. br., 

 venation on under surface conspicuous. Stipules -5-1 mm. 1. 

 Cymes 1 or 2 in axils. Male hud -75 mm. 1., globose-pyriform ; 

 segments with a raised median line ending in connivent tubercles. 

 Achene -75 mm. 1., roundish-elliptical or roundish-ovate, margined, 

 muriculate, projecting beyond median perianth-segment by one- 

 quarter to one-third; median segment as long as the achene, 

 oblong-elliptical with a light-coloured dorsal keel ; lateral segments 

 elliptical, shortly acute, half to one- third as long as the median. 



Hab. — Wright I Masson ! Sivartz ! Bancroft ! Bath, Purdie ! 

 Wilson \ Blue Mts., Alexander \ J. P. 1147, Morris \ Portland 

 Gap, 5500 ft. ; near Morse's Gap, 4800 ft., Harris ! 5426, 7351. 



There has been some confusion as to the species P. Parietaria 

 and P. ciliaris, owing in part to want of knowledge of Sloane's 

 specimen on which Linnseus founded Urtica Parietaria. P. ciliaris 

 Wedd. does not occur in Jamaica; the var. Bivorice includes a 

 Martinique species (formerly described by Weddell as P. Bivorice) 

 and a distinct species from Jamaica which we describe as 

 P. Weddellii. 



Pilea rufescens. Sujfrutex monoica, caulibus ramosis, ad- 

 scendentibus, ramis hirsutis. Folia ejusdem paris inaequalia, 

 majora petiolata, elliptica, alia multo minora, subsessilia, rotundata, 

 triplinervia, in dimidia parte superiore serrata, supra glabra, mar- 

 ginibus nervisque subtus hirsutis, pilis rufescentibus. Stipidce 

 rotundatae, persistentes. Cymce androgynae, umbellatas vel corym- 

 bosae, pedunculo petiolo multo longiore. Types in Herb. Mus. 

 Brit, and in Herb. Jam. 



Stem 2-3 dm. high. Leaves, larger 1-2-2 cm. 1., *6-l cm. br., 

 smaller -5-1 cm. 1. ; basal nerves reaching about the upper third 

 of the leaf ; cystoliths linear-fusiform, conspicuous on upper sur- 

 face, smaller and much more numerous beneath; petioles -4-1 cm. 

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

 ferruginous (when dry). Cymes small, peduncle about -5 cm. 1. 

 Male floicers white ; perianth -7 mm. 1., dorsal appendage small, 

 tuberculate, patent. 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 shghtly 

 shorter than the median, elliptical, obtuse. 



Hah. — On limestone rocks ; near Troy, 2000 ft., Harris ! 8533. 



Near P. rufa Wedd., but differs in being less hirsute ; leaves 



