XII. RHAMNEÆ, Br.
1. COLLETIA, Cunn.
1. Colletia discolor, Hook.; glaberrirna, ramis rigidis teretibus parce foliosis hie illic spinosis, foliis oppositis elliptico-oblongis obovatisve obtusis obscure serratis in petiolum brevem attenuatis subtus pallidioribus, pedunculis axillaribus unifloris, calyce quadrifido, fructu 3-cocco, coccis pilosis monospermis, testa Crustacea uitida. C. discolor, Hook. Icon. Plant, t. 538.
Hab. Strait of Magalhaens, Port Famine ; Copt. King.
Frutex spinescens, spiuis oppositis plenunque articulatis, rarius ad articulos foliiferis, ramis cortice lsevi obtectis. Folia A-uncialia, breve petiolata, subcoriacea, supra liigrescentia, subtus pallide yirescentia, apiee ssepe emarginata. Pedicetti floriferi sub 2 lin. longi, fructiferi elongati, robusti, infra calycem gradatim incrassati. Qalyx urceolatus. Fructus majusculus, calyce dilatato sufl'ultus. Semina polita, castanea.
XIII. LEGUMINOSÆ, Juss.
1. ADESMIA, DC.
1. Adesmia pumila, Hook. fil.; parce subviscide pubescens, caule brevi simpbei v. ramoso herbaceo, stipulis late vaginantibus sursuin in auriculas latas obtusas productis, petiolis gracilibus, fob'olis 3-5-jugis coriaceis obovato-cuneatis obscure cihato-dentatis, pedunculis unifloris gracilibus petiolo asquilongis, calyce campanulato basi subrequali, vexillo- calyce bis longiore dorso glabriusculo, stylo elongato, ovario pluriovulato, legumine pubescenti bineari-cornpresso ad articulos crenato.
Hab. Strait of Magalhaens, Port Gregory ; Copt. King. Cape Negro ; C. Darwin, Esq.
Herba pumila, 2-5-uneialis. Folia J-l unc. longa ; fobola A uncialia, siccitate flavescentia, anguste obovato-cuneata, apice rotundata, enema. Flores solitarii, suberecti, pro planta majusculi, flavi, purpurascentes ? Pea ilium fere ~ unc. longum. Legumen sub 1 0-articulatum.
2. Adesmia lotoides, Hook. fil.; appresse sericea, caule basi diviso bgnoso gracili ascendent e rarius abbreviate, ramis terminalibus, stipulis late vaginantibus superne in auriculas breves divergentes productis, petiolo nullo, foliolis 2 in stipulam sessilibus lanceolatis acuminatis utrinque sericeis, pediccllis axillaribns unifloris folio bis terve longioribus, calycis basi sequalis dentibus ovatis subulatis, vexillo dorso glaberrimo marginibus sparse sericeo-ciliatis ungue brevi callo barbato aucto, alarum lamina lineari-oblonga, carina dolabriformi marginibus subciliatis, stylo ascendente gracili elongato.
Hab. Strait of Magalhaens, Cape Gregory ; Copt. King. Elizabeth Island ; C. Darwin, Esq.
Caules graciles, interdum spithamsei, rarius abbreviati, sublignosi. Folia pilis sericeis appressis cana, basi in stipulam vaginantem latiusculam dilatata, - unc. longa, lanceolata v. elliptico-oblonga, acuta, integerrima. Pedtaiculi elongati, pubescentes. Flores suberecti, calyce sericeo, petalis flavis, vexillo fere unc. longo.
The species of this genus are particularly numerous in Patagonia, considering the very scanty nature of its Flora, and are characteristic of a dry and warm climate, rather than of the Fuegian vegetation. Thus we do not find them on the west coast of South America, southward of the parallel of Valdivia ; but on the east, they descend to 52°, and even enter the Strait of Magalhaens, inhabiting its shores so long as these partake of the character of the
