224 Dr. 3. D. Hooker's Enumeration of the Plants 



diametri, membranacea, obscure sinuato-lobata, basi pro ^ longitudinis bifida v. cordata, 

 lobis rotundatis, sinu acuto, pagina superiore papillis minutis albidis conspersa, nervis 

 pubescentibus, inferiore pilis albidis puberula, margine ad apices nervorum subspinu- 

 loso-dentato. Petiolus folio longior v. subaequilongus. Cirrhus 3-uncialis, delude in 

 flagellas plurimas fissus. Panicula pedalis, superne in ramos 3 divisa, ramis multi- 

 floris. Flores longe pedicellati, divaricatim patentes ; pedicellis villosis, gracilibus, ^- 

 uncialibus. Flores masculi diametro 2-3 lin., lutei. Calycis tubus brevis, dentibus 5 

 subulatis. Corolla calyci adnata, extiis pubescens. Columna antherifera in glandulam 

 insidens, erecta, filamentis 3, antheris 5 ? Pedun cuius florum foemineorum ad basin 

 masculorum, solitarius, 2 unc. longus, apice multiflorus. Flores ignoti. Fructus ellip- 

 ticus, i unc. longus, pubescens, setisque axillaribus retrorsum sub lente pilosis obsitus. 

 Semen unicum. 



Mr. Darwin mentions this as a very pernicious weed. It is a distinct species 

 from any I have seen, and I believe not hitherto described. 



201. Elaterium cordatum, Hook.Jil.; glabriusculum, foliis membranaceis 

 rotundatis basi profundi cordatis lobis rotundatis approximatis sinu ob- 

 tuso membranaceis margine obscur^ sinuato-dentatis utrinque spars^ 

 papillatis ad nervos minutfe setosis, cirrhis bifidis, pedunculis masculis 

 elongatis bi-trifidis bi-trifloris, floribus luteis foemineis ad basin pedun- 

 culi maris solitariis, calyce longe tubuloso basi truncato infra limbum 

 brevissime 5-dentatum hirsuto. 



Hab. James Island, Charles Darwin, Esq. 



Caulis gracilis, elongatus, glaberrimus v. parce pilosus. Folia remota, 2-3 unc. lata, basi ad 

 ^ longitudinis biloba, apice rotundata et breviter acuminata, marginibus ad apices ner- 

 vorum obscure dentatis, juniora interdum angulata, petiolis longitudine variis. Pedun- 

 culi flor. fcem. i-1 unc. longi, 2-5-flori. Calycis tubus 3^ lin. longus. Petala paten- 

 tia, cum tubo calycis aequilonga v. longiora, lineari-subulata. Columna antherifera 

 gracilis; antheris elongatis. Flos foemineus semper (in exemplari unico) ad basin 

 pedunculi floris mascuU solitarius, breviter pedicellatus. Fructus ignotus. 



A well-marked species, probably peculiar to the Galapagos group. 



Myrtace^. 



202. PsiDiuM Galapageium, Hook.Jil. ; ramis teretibus v. rar5 angulatis diva- 

 ricatis cortice cinereo tectis, raraulis tomentosis, foliis parvis breviter 

 petiolatis ellipticis acutis coriaceis junioribus utrinque pilosis venis sub- 



