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FLOUA OF THE ISTHMUS OF PANAJIA. 81 
38. Securidaca tomeniosa, St. Hil., Fl. Bras. Mcrid. vol. ii. p. 68. t. OG.—Wlprs. Rep. vol. i. 
p. 246. — Capsulse ala obovata fcrrugmeo-hirsuto-tomentosa. Near the city of Panama. 
CARYOPHYLLEiE. 
39. Drymaria cordata, "Willd.j De Cand, Prodr. vol. i. p. 395. Throughout the Isthraus. 
■ A common weed in both hemispheres. I have seen specimens from Ceylon ("U'alker, Tliwaites), 
Kamaon (Thomaon), Nepal (AYallich), Port Essington (Armstrong), Jamaica (Purdie, irFaiiycD), 
Trinidad (Lockhart), Mexico (Galeotti), Guiana (Schomburgk) , Surinam (Ilostniann), Brazil (Scllow, 
Spruce, Salzmann), and St. Catherine's Island (Tweede). 
40. Stellaria lanuginosa, Torr. et Gray, El. of N. Amer. vol. i. p. 187. — S. elongata, Nutt.j 
De Cand. Prodr. vol. i. p. 399. Volcano of Chiriqui, Veraguas. 
This species has been found, besides the United States, in Mexico (Coulter), and Jamaica (Bancroft, 
IMTadyen). 
MALVACE^. 
41. Malva tricuspidata, Ait., Dc Cand. Prodr. vol. i. p. 430. — Sida carpinoides, Dc Cand. 1. c. 
p. 461. Hacienda de Cocoli, Panama. 
43. Urena sinuata, Linn., De Cand. Prodr. vol. i. p. 442. — U. paradoxa, H. B. K. Nov. Gen. 
Am. vol. V. p. 378 ! — U. heterophylJa, Presl, Reliq. Hfcnk. vol. ii. p. 137 ! — V, Htsnkeana, Wlprs. Rep. 
vol. i. p. 297 ! Common througliout the country. 
Although nearly every author, who lias worked at this genus, has borne testimony to the great variation 
to which the Urenas are subject, still most of the species arc retained and new ones created. The quantity 
of hair, the shape and size of the leaves, and the number of glands upon the leaves, alter according to age 
and locality so much, and present in one and the same specimen so many modifications, that all the so-called 
species ought to be united into one. 
43. Pavonia Thyphalea, C^v., De Cand. Prodi*, vol. i. p. 443. Cerro de Ancon, near Panama; 
Chagres (Fendl. no. 320). 
44. Pavonia sessilifora, H. B. K., De Cand. Prodr. vol. i. p. 444. — P. bracteosa, Benth. in Hook. 
Journ. of 33ot. vol. iv. p. 118 ! In the savanas of the pronnccs of Panama and Veraguas. 
A shrub from 2 to 5 feet high, with fine yellow flowers. The carpels are nearly always glabrous, but 
in the specimens collected by Humboldt and Bonpland they were "found hirtello-hispld, and in Hooker's 
Herbarium there is one which has both glabrous and hairy carpels, for which reason I have united P. 
bracteosa and P. sessilijiora. 
45. Pavoxia 2mmciilata, Cav., De Cand. Prodr. vol. i. p. 444. Hacienda de Cocoli, Province 
of Panama. 
46. Pavonia (§ Malache, Endl.) alba, Seem. ; fruticosa, ramulis petiolisque pubendis, foliis 
cordato-ovatis acnminatis scrratis pcUucido-xnmctatis, supra pubcmlis pilis simplicibus, subtus 
(prffisertim junioribus) hirsutis pilis stcllatis, utrinque glabratis, pcduncidis axillaribus solitariis 
folio brevioribus vel subsequantibus supra medio articulatis versus apicem incrassatis hirsutis, 
iuvolucello 8-pbyllo, phyllis linearibus acutis pilosis calycem superantibus, laciniis calycinis ovatis 
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