194 UNITED STATES AND MEXICAN BOUNDARY. 
twice bifid. We have not been able to find any described species to which we can refer this 
Croton. It is a genuine species of the genus as characterized by Klotsch. 
Croton SONORA (n. sp.): fruticosum ; foliis ovatis acutiusculis basi obtusis integris supra gla- 
briusculis infra sparsim stellato-pubescentibus ; floribus monoicis, masculis paucis sub-13-andris, 
petalis 5 calyce equalibus ; foemineis solitariis vel binis, petalis 5 angustis calyce brevioribus ; 
o 22) disco 5-lobo ; stylis apice bifidis. Sierra de Nayos, July ; Schott. A small shrub, much branched; 
the old branches smooth, younger ones furfuraceous. Leaves about an inch 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 опе ог 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-lobed. 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, femineis solitariis vel 
binis, subsessilibus ; stylis profunde bipartitis ; stamineis brevi-racemosis 12-14-andris. On the 
Rio Grande, No. 1804, 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 pinnatifid bracts. Petals 5, 
oblong. Stamens commonly 14. Fertile flowers usually in pairs at the base of the staminate 
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 С. pellitus, Н. B. K. 
__ С. SUAVEOLENS, уат, OBLONGIFOLIUM : foliis oblongis supra discrete stellato-pubescentibus, subtus 
ве dense tomentosis ; racemo masculo subelongato multifloro, floribus subsessilibus. Rocky ravines 
along the Rio Grande, from the 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 4-3 "inch wide, the upper surface much 
darker than the lower, rather acute and somewhat mucronate. Flowers monecious; male ` 
raceme an inch or more in length. Fertile flowers 1-2. Styles 2-parted nearly to the base. 
ка” АР Ж ^. Овотох LINDHEIMERIANUM, Scheele-in Linnca, 95, р. 580. Rocky hills, western Texas; New 
| Mexico, Chihuahua and Nuevo Leon ; Buena Vista ; Gregg. (Nos. 641 and 1805, Wright.) Plant 
upright, 1-2 feet high ; the ова herbaceous iol a woody base, Leaves whitish tomentose 
with stellate hairs which are somewhat confluent in the centre, Flower smostly diccious, rarely 
moncecious, in short racemes, which are subterminal and axillary. Staminate flowers with lan- 
ceolate ciliate petals. Stamens about 12; a 5-lobed disk at the base of the hairy filaments. 
Fertile flowers on pedicels 2-3 lines ui ; calyx deeply 5-parted. Petals sometimes wanting 
but usually present and very unequal, 1-2 of them linear and nearly as long as the calyx, the 
' others 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 
А the name ot Mexican Tea. 
Овотох FRUTICULOSUM (Engelm. MSS.) : pee basi Hubo; foliis ovatis vel lanceolato-ovatis 
| ninatis acutisve subcordatis remote mi ime denticul dulosis supra viridis pube- 
s subtus dense stellato-pubescentibus ; floribus monoicis pedicellatis, masculis racemosis 10-5 
js 5-petalis, fæmineis apetalis; stylis profunde bipartitis, laciniis elongatis filiformibus. 
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