16 BOTANY OF THE VOYAGE OF THE SULPHUR. 
breviores, interdum subdentate. Petala oblonga, basi angustata, semipollicaria. Stamina parum inequalia, 
petalis breviora. Capsula (nondum matura) 6 lin. longa, calycis limbo coronata, 5-valvis, placentis duabus. 
This species, from the whiteness of its stem, resembles the AZ. albicaulis 
Dougl. and M. albescens Gill., but is very different in foliage and flowers from 
either. It is remarkable from the adhesiveness of its barbed hairs, which most 
of the Loasacee have, it is true, but few of them to such a degree as the present 
species. 
FougulERiace2. 
50. Bronnta spinosa, Humb. et Kunth, Nov. Gen., et Sp. vi. p. 84. t. 528.—Cape San Lucas. 
This remarkable plant, forming the second genus in an anomalous natural 
order, consisting as yet but of two genera and three species, was only seen by 
Humboldt and Bonpland in fruit. The specimens in the present collection have 
a few flowers, resembling those of Fouquiera in general aspect, though of a smaller 
size, and offering the following characters : 
Sepala 5, rigide scariosa, colorata, glabra, ovata, obtusa cum mucrone, valde imbricata interioribus 
latioribus, 2 lin. longa. Corolla 8 lin. longa, tubo cylindrico superne paullo ampliore rectiusculo, limbi laciniis 
late ovatis acutis convoluto-imbricatis. Stamina 10, disco subperigyno cum corolla inserta, corolla longiora ; 
filamenta glabra, antheree oblongo-lineares, dorso affixee, biloculares, loculis parallelis, basi liberis, rima longi- 
tudinali dehiscentibus, connectivo apice apiculato. Ovarium ovato-conicum, triloculare, columna placentifera 
crassiuscula centrali facile a dissepimentis secedente, Ovula in quoque loculo pauca, e basi anguli centralis 
adscendentia. Stylus filiformis, exsertus, apice trifidus, laciniis truncatis apice stigmatosis. 
PARONYCHIACER. 
51. Drymartia holosteoides, sp. n., humilis, czespitosa, subglauca, florum et foliorum fasciculis 
paucis remotis, foliis longiuscule petiolatis ovatis basi cuneatis integerrimis crassiusculis, pedicellis 
unifloris petiolum vix zquantibus, capsulis calycem sequantibus.—Cape San Lucas. 
Herba humilis a ceteris Drymariis habitu distincta. Claules e collo plures, 4-6-pollicares, simplices, 
fasciculos foliorum et florum 1-3 inter se distantes ferentes, inter fasciculos nudi. Stipulee scariosee, parvee, 
fugaces. Petioli 2-3 lin, longi ; lamina foliorum vix longior, obscure sub-5-nervia. Pedicelli numerosi, petiolum 
vix equantes. Calyx profunde 5-fidus, laciniis 1} lin. longis ovatis margine membranaceis, estivatione imbri- 
cata. Petala 5, perigyna, calycem vix squantia, lineari-cuneata, semibifida, laciniis incisis. Stamina 5, 
perigyna, laciniis calycinis opposita, Ovarium uniloculare, ovulis paucis, placenta centrali brevi affixis. Stylus 
simplex, apice brevissime trifidus, laciniis intus stigmatosis. Capsula oblonga, triquetra, ad angulos in valvulas 
3 cartilagineo-subhyalinas dehiscens. Semina pauca vel abortu solitaria, orbiculato-cochleata. Testa coriacea, 
Embryo circa albumen farinaceum linearis, hemicyclicus. 
52. Drymartia crassifolia, sp. n., humilis, ceespitosa, ramosissima, glauca, florum et foliorum 
fasciculis numerosis, foliis petiolatis ovatis basi cuneatis integerrimis crassis, pedicellis unifloris folia 
gequantibus, capsulis calyce subdimidio longioribus.—Cape San Lucas. 
