194 UNITED STATES AND MEXICAN BOUNDARY. 



twice bifid. We have not been able to find any described species to wbich we can refer this 

 CrotoD. It is a genuine species of the genus as characterized by Klotsch. 



Crotox SoNORiE (n, sp.) : fruticosum ; foliis ovatis aciitiusculis basi obtusis integris supra gla- 

 briusculis infra sparsim stellato-pubescentibus ; floribus monoicis, masculis paucis sub-13-andris, 

 petalis 5 calyce tequalibus ; foemineis solitariis vel binis, petalis 5 angustis calyce brevioribus ; 

 difcco 5-lobo ; stylis apice bifidis. Sierra de Nayos, July ; ScJiott. A small sbrub^ much branched; 

 the old branches smooth, younger ones furfuraceous. Leaves about an incb long, green both 



sides but rather paler underneath. Petals of the male flowers hairy at the base. Stamens with 

 5 spherical orange glands surrounding the receptacle. Female flowers one or two at the base of 

 the short and few-flowered male raceme. Segments of the calyx rather acute. Petal linear- 

 oblong, two- thirds of the length of the calyx. Disk surrounding the base of the ovary rather 

 fleshy, 5-]obed. Styles rather stout, somewhat dilated and moderately bifid. Young fruit sub- 

 globose. 



Croton suaveolens (n. sp.) : fruticosum; foliis ovatis obtusis basi rotundatis integerrimis 

 eglandulosis utrinque densissime lanato-tomentosis ; floribus monoicis, foemineis solitariis vel 

 binis, subsessilibus ; stylis profunde bipartitis ; stamineis brevi-racemosis 12-14'andris. On the 

 Rio Grrande, No. I8O43 Wright. A shrub with stout terete stellately pubescent branches. Leaves 

 growing mostly towards the extremity of the branches, rather thick, paler underneath. Stami- 

 nate flowers 6-10 in a short raceme, sessile, subtended by minute pinnatifld bracts. Petals 5, 

 oblong. Stamens commonly 14. Fertile flowers usually in pairs at the base of the sfcaminate 

 flowers. Calyx deeply 5-parted ; the segments lanceolate and acute. Disk somewhat 5-lobed, 

 with 5 linear or club-shaped processes (petals ?) alternating with the calyx-segments. This 

 species seems to be near C. pellitus, H. B. K. 



C. SUAVEOLENS, var. oelongifolium : foliis oblongis supra discrete stellato-pubescentibus, subtus 

 f'^'foiense tomentosis ; racemo masculo subelongato multifloro, floribus subsessilibus. Rocky ravines 



along tbe Bio Grande, from tbe Pecos and San Pedro to the Gulf. No. 1802, Wright^ from the 

 Painted Caves, is probably the same, but the specimens are more herbaceous, and they may be 

 only luxuriant shoots. Leaves 1-2 inches long and ^-f inch wide, the upper surface much, 

 darker than the lower, rather acute and somewhat mucronate. Flowers monoecious ; male 



w 



raceme an incb or more in length. Fertile flowers 1-2. Styles 2-parted nearly to the base. 



L^ 



-* w-w-O^t^ 



Ceoton Lindheimerianum, Scheele in LtnrKea^ 25,^. 580 

 Mexico, Chihuahua and Nuevo Leon ; Buena Vista ; Gregg. 



Rocky hills, western Texas ; New 

 ^os. 641 and 1805, WrigJit.) V\^r\i 



upright, 1-2 feet high ; the branches herbaceous from a woody base. Leaves wbitisb tomentoee 

 with stellate hairs which are somewhat confluent in the centre. Flower smostly dioecious, rarely 



moncecious, m short racemes 



Staminate flowers with Ian- 



% * 



ceolate ciliate petals. Stamens about 12 ; a 5-lobed disk at the base of the kairy filaments. 

 Fertile flowers on pedicels 2-3 lines long ; calyx deeply 5-parted. Petals sometimes wanting 

 but usually present and very uneqnal, 1-2 of them linear and nearly as long as the calyx, the 



much 



shorter or wanting. Disk conspicuous, 5-lobed ; the lobes opposite the segments of 

 the calyx. Styles parted nearly to the base ; the divisions filiform. This species is known by 

 the name of Mexican Tea. 



Croton FRuxicuLOsrM (Engelm. MSS.) : caule basi fruticoso ; foliis ovatis vel lanceolato-ovatis 



remote 



rulis subtus dense stellato-pubescentibus ; floribus monoicis pedicellatis, masculis racemosis 10-5 

 andris 5-petalis, foemineis apetalis; stylis profunde bipartitis, laciniis elongatis filiformibus. 





-Ll. -<I 



