Pilea URTICACE^. 63 



shrubby, glabrous ; stems somewhat succulent, very branched, 

 diffuse, leaves very small, those of a pair often unequal, elliptical 

 or oblong or obovate or roundish, mostly obtuse, base often 

 cuneate-attenaate, entire, one-nerved ; cy mules generally con- 

 sisting of a single sessile cluster, shorter than the leaf, andro- 

 gynous or unisexual. Griseb. FL Br. W. Lid. 155 (including var. 

 triantliemoides) ; Wedd. in DC. Prodr. xvi. pt. 1. 105 (in part); 

 Urh. Sijnth. Ant. iv. 200. P. trianthemoides, Lindl. Coll. Bot. sub. 

 t. 4. Herniaria lucida aquatica Sloane Cat. 50 & Hist. i. 145, 

 t. 93, /. 2. Urtica humilior disticha &c. Browne Hist. Jam. 336. 

 Parietaria microphylla L. Sijst. ed. 10, 1308 (1759) & Amaen. v. 

 412. Urtica microphylla Siv. in Vet. Handl. Stockh. viii. 66 (1787) 

 & FL Lid. Occ. 305. Urtica trianthemoides Sw. in Vet. Handl. 

 StocJch. viii. 68 (1787) & FL Ind. Ore. 307. (PI. 1, B, f. 1.) 

 Type in Herb. Mus. Brit. 



Sloane Herb. ii. 121 ! Hoiistoiin\ Wright \ 'Lignsinea, Broiighton \ Ban- 

 croft \ Distir.l Port Royal Mts., Purdiel Fairfield, Wullschlaegel, 1013! 

 Arnott ! Prior ! March ! Jackson Town, Miss A. Moiilton-Barrett ! Bryans 

 Hill ; near Browns Town ; Salem, Llandovery, St. Ann ; Cinchona ; New 

 Forest ; Harris ! FL Jam. 5394, 7257, 7407, 8165, 8418, 10,378. Florida, 

 Bahamas, W. Indies, continental trop. America. 



Stem varying in length to 3 dm. and more. Leaves 1*5-7 mm. 1., 

 with linear transverse cystoliths on upper surface ; petiole very short or 

 1-3 mm. 1. Flowers greenish tinged with white and red. Male flowers 

 with pedicel to '75 mm. 1. ; perianth about 1 mm. 1., segments with short 

 and broad glabrous dorsal appendage. Female flowers subsessile. Achene 

 ovate, slightly rough, '5 mm. 1.; median segment of perianth cucullate, 

 scarcely longer than the lateral segments and a little shorter than the 

 achene. 



Var. sueeulenta Grlseh. Joe. eit. Leaves orbicular (3-5 mm. 

 br.), base rounded or shortly cuneate, shortly stalked, stem 

 shrubby, succulent. 



Wilso7i ; "Jamaica," without locality or collector, in Herb. Kew. 

 Porto Rico. 



2. P. herniarioides Lindl. Coll. Bot. suh. t. 4 (1821) ; monoe- 

 cious, herbaceous ; stems short, crowded, filiform, very slender, 

 not branching much, generally prostrate or creeping, glabrous ; 

 leaves minute, opposite (4 terminal, rosulate), roundish ; upper 

 surface and margin with a few longish hairs or glabrescent ; 

 cymules androgynous, generally sessile, in upper axils or among 

 terminal leaves; female perianth rudimentary. Url). Sijrid). Ant. 

 iv. 201. P. deltoidea Liehm. in Vidensli. Sehh. SJcr. Kopeult. 

 ser. 5, ii. 298 (1851) ; Wedd. torn. cit. 108. P. microphylla 

 Liebm. var. herniarioides Wedd. torn. cit. 106 (1869). P. Brittoniie 

 Urh. Sijhib. Ant. v. 528 (1908). Urtica herniarioides Sw. in Vet. 

 Handl. StocJch. viii. 64, /. IL f. 1 (1787) et FL Lid. Occ. 309. 

 (PI. 1, B, f. 2.) Type in Herb. Stockh. 



In holes in limestone rock ; Morse's Gap, Harris ; Fl. Jam. 739G ; 

 between St. Helen's Gap and Morse's Gap, Britton, 95 ! Key Is., Bahamas, 



