NEW PLANTS FROM JAMAICA 181 



aggregatae. Type in Herb. N. York Bot. Gard. and in Herb. 

 Mus. Brit. 



Stem 6-8 cm. 1., sometimes rooting below at the nodes, densely 

 covered with thin linear cystoliths ; internodes 1-3 cm. 1. Leaves 

 3-1 cm. 1., 1-5--8 cm. br., basal nerves produced to one-half to 

 two-thirds of their length, not visible on upper surface, connected 

 reticulately beneath ; cystoliths small, linear, numerous on upper 

 surface ; petioles 2-8 mm. 1. Stiimles •6-"8 mm. 1. Cymes solitary 

 from axils of upper leaves, peduncles glabrous. Male floioers 

 sessile or subsessile ; perianth about 1 mm. 1., globose, segments 

 coherent below, sparsely hirsute, dorsal appendages triangular. 

 Female floioers pedicellate. Acliene -6 mm. 1.; median segment 

 reaching to about one-half of achene, 4 mm. 1., oblong, truncate, 

 dorsal appendage mucronate ; lateral segments half as long as 

 median, ovate, acute. 



Hah. — Woodlands, near Newport, Manchester, Sept., Britton, 

 3205! 



This species is very near P. diffusa Wedd., but the flowers are 

 different, as well as the indumentum of the leaves. 



Pilea Hollickii. Herha dioica, caulibus simplicibus vel sub- 

 ramosis, adscendentibus, pubescentibus, infra nudis, apice foliatis. 

 Folia ejusdem paris magis minusve inaequalia, elliptico-ovata, basi 

 obtusa, ultra trientem inferiorem crenato-serrata, trinervia, supra 

 glabra, subtus in nervis venisque pubescentia, membranacea. 

 Stipules late ovatae, amplexicaules. Cymce (masculae tantum visae) 

 in apice pedunculi petiolo longioris aggregatae, rarius subsessiles. 

 Types in Herb. N. York Bot. Gard., in Herb. Mus. Brit., and in 

 Herb. Jam. 



Stem 10-20 cm. high, about 2 mm. br., covered with thin linear 

 cystoliths; lower internodes sometimes very long (to 9 cm. 1.). 

 Leaves 9-17 mm. 1., 7-12 mm. br., basal nerves produced to about 

 two-thirds of their length, glandular-dotted below; deciduous 

 except at apex where 4-6 are crowded together ; cystoliths hnear, 

 small on upper surface ; petioles pubescent, 3-7 mm. 1. ; stipules 

 2-3 mm. 1. Cymes in the axils of the upper leaves, peduncles 

 glabrous, generally 5-17 mm. 1. Male flowers sessile or subsessile ; 

 perianth 1'6-1'7 mm. 1. ; segments coherent to about level of 

 dorsal appendage, outline (inch appendage) broadly ovate ; appen- 

 dages, opposite pairs of unequal length, triangular, nearly as long 

 as the rest of the perianth. 



Hab. — Union Hill, near Moneague, April, Britton ct Hollick, 

 2754 ! 



The leaves suggest a small variety of P. ohtusata Liebm., but 

 the cymes are short with dense-flowered clusters at the apex of 

 the peduncles. 



Pilea silvicola. Herha dioica, infra suflrutescens, caulibus 

 ascendentibus simplicibus v. paullo ramosis, glabris. Folia ejusdem 

 paris magis minusve inaequalia, petiolata, elliptico-ovata, breviter 

 subacuminata, basi subcordata, ultra trientem vel dimidium in- 

 feriorem grossiuscule serrata, trinervia, plantae masculae glabra, 

 femineae utrinque sparse pilosa, membranacea. Stijmlo} ellipticae 



