Та ba BOTANY. 165 
GoNOLOBUS GRANULATUS (Scheele in Linnea 21, p. 159.): volubilis pilis patentibus vel reversis 
hirsutus; foliis longius petiolatis ovatis acuminatis profunde cordatis; pedunculo petiolum 
superante; umbellis paucifloris ; corollw laciniis ovatis obtusis reticulato-venosis extus pilosius- 
culis, intus glabris; corona stam. annuliformi; gynostegio substipitato applanato ; antherarum 
cuspidibus tenuissimis inflexis |) stigmate nudo ; follieulis lanceolatis sparsim echinatis glabris. 
Mountain ravines, near Live Oak Creek, September; Bigelow. Sonora; Schott. Monterey, Neuvo 
Leon; Dr. Edwards and Major Eaton. (No. 543 and 1674, Wright. No. 350 Lindheimer's 
Texan Coll. 1846.) Stem herbaceous, twining over shrubs and small trees. Leaves varying 
from 2-34 inches long, and 11-24 inches wide, slightly pubescent on both sides; the petiole 
8-10 lines long. Peduncles usually about one-fourth longer than the petioles. Umbel (or 
rather very short raceme) 4-8-flowered; the longer pedicels about an inch in length. ` Flowers 
5 or 6 lines in diameter. Calyx hairy; the segments lanceolate. Corolla rotate, greenish or 
purplish, with darker reticulated veins. Stamineal crown reduced to a narrow ring. Anthers 
with the membranous appendage very thin and inflexed under, not lying on the stigma, 
Pollen-masses obliquely obovate. Stigma obtusely 5-angled, flat. Follicles 44 or 5 inches long 
and about # inch in diameter, armed with distant, subulate, rather firm prickles, 
LACHNOSIOMA? PARVIFLORA (n. sp.): humifusum, pilosum ; foliis ovatis vel orbiculato-ovatis 
acutis brevi-petiolatis; pedunculis folio multo-longioribus ; floribus primo umbellatis deinde 
racemosis; corolla rotata, laciniis ovatis; corone stam. phyllis 10 biseriatis, 5 exterioribus 
alte bifidis laciniis acuminatis, 5 interioribus subulatis utrisque gynostegio longioribus; folliculis 
ovato-oblongis spinis innocuis villosis dense onustis, Бап Pedro Creek, western Texas; Wright, 
(No. 1673.) Table-land between Ringgold Barracks and Laredo, on the lower Rio Grande, 
June—July; Schott. Root tuberous. Stem clothed with a gray spreading pubescence, branch- 
ing from the base; the branches 8-12 inches long. Leaves varying narrowly to broadly ovate, 
about three-fourths of an inch long, usually waved and often crisped on the margin, Peduncles 
axillary and subterminal, at first only a little longer than the leaves, but in fruit twice or thrice 
longer. Umbels or racemes 5-10-flowered. Corolla about 2} lines in diameter, purplish. 
Stamineal crown consisting of 10 distinct leaflets in a double series; the 5 exterior cleft about 
halfway down, the points curved over the stigma; the 5 interior subulate, arising from the 
base of the exterior leaflets, which they considerably exceed in length, and are likewise curved 
over the stigma. Gynostegium sessile. Pollen-masses nearly orbicular. Pods 2-3 inches 
long, densely covered with short thick rather fleshy processes. This plant can scarcely be 
referred to any of Decaisne’s genera, but 1 аш unwilling to propose a new genus for its reception 
while my knowledge of the Mexican Asclepiadacee is so imperfect. 
GONOLOBUS BIFLORUS, Nutt. Chthamalia biflora, Decaisne in DC. Prodr. 8, p. 605. Dry 
prairies, western Texas; Wright, (No. 543.) New Braunfels, Lindheimer, (No. 162.) Stems 
prostrate, 1-2 feet long, not twining. Flowers dark purple. Lobes of the stamineal crown 
with an internal ridge which is produced into an inflexed curved process. Follicles 3-4 inches | 
long, echinate with soft prickles. С. pubiflora, Decaisne, l. c., is Gonolobus prostratus of | 
Elliott, but not of R. Brown. | ^ 
Сохотовоз (С ) CYNANCHOIDES, Engelm. & Gray, Pl. Lindh. pars 1, p. 43. Western 
Texas, Wright. € y related to the last, but differs in the smaller flowers, and in the short 
excavated process of the lobes of the corona. (No. 545, Wright. No. 1951, Berlandier.) 
.. GonoLosus (СнтнАмАША) PRODUCTUS (n. sp.): caule volubili pubescente; foliis ovatis longe 
