BOTANY. 161 
Parry, Schott. Valley of the Limpia; Bigelow. Sonora; Thurber. (No. 1680, Wright. No. 
904, 1951, and 2334, Berlandier.) This slender vine climbs trees to the height o of 30 or 40 feet, 
or trails over shrubs and other plants. The flowers have an agreeable odor. I strongly suspect 
this to be the Gonolobus viridiflorus, Nutt. (not uf Roem. & Schult.) It is certainly the plant 
so named in my-account of the plants collected by Dr. James in Long’s Expedition, and, I think 
it was so regarded by Mr. Nuttall, who cursorily examined those plants in my herbarium. 
SARCOSTEMMA ELEGANS, Decaisne, l. с. p. 541? Rocky places, Presidio del Norte, July— 
August; Parry. Camp Bache, and on the Cibolo of the Rio Grande; Bigelow. Our plant 
accords with the description of Decaisne, but it may be a distinct species, It differs from the 
last in the strongly pubescent stem and leaves; the flowers twice as large, and the segments of 
the corolla oblong and obtuse, with a reticulate venation; whereas in 8. cynanchoides the 
divisions of the corolla are ovate and acute, with several parallel longitudinal veins. The 
follicles are pubescent, about 4 inches long, half an inch wide in the middle, and tapering to a 
long point. 
SARCOSTEMMA UNDULATUM (n. sp.): volubile, glabratum; foliis lineari-lanceolatis acutis basi 
subauriculato-cordatis margine undulato-crispatis; pedunculis petiolo 2-3-plo longioribus pluri- ^c 
floris; corona staminea exteriore pelviformi integerrima, interiore foliolis ovatis obtusis gynos- 
tegio brevioribus. Mountains east of the Rio Grande, 70 miles below El Paso, June; Parry. 
Copper Mines, New Mexico; Bigelow. (No. 1678, Wright.) Stem 2-3 feet long, twining, or. 
sometimes prostrate. Leaves 2—4 inches long, and 5-8 lines wide in the middle; ; tapering toa 
long point, usually dilated and auriculate-cordate or somewhat hastate at the base; the mid- 
rib often whitish on both surfaces; the margin more or less undulate or crisped; petioles about 
half an inch long. Umbel 8-10-flowered. Peduncles 1-13 inch long, and the pedicels about 
` the same length. Flowers half an inch in diameter. Segments of the calyx linear-lanceolate. 
Corolla rotate, purple, smooth internally and externally, the margin ciliolate ; segments oblong, 
obtuse. Gyrostegium nearly sessile,” Pods 3 inches long, 4 lines in diameter, tapering at each 
end, slightly pubescent. Resembles S. crispum, Benth., but that is a humbles pecies, (only half 
a foot long,) the peduncles barely equal the petioles, and the exterior stamineal crown is 
annular ; while in our plant it forms a distinct cup. 
HUNE AER HETEROPHYLLUM (Engelm. MSS.; Torr.in Pacif. Railroad Rep. 5, p. 363) puber- 
ula, volubile; foliis anguste-linearibus brevi-petiolatis acutis basi cordatis v. cordato-hastatis 
(raro) acutiusculis; pedunculis plurifloris petiolo multo longioribus; corolle laciniis patulis 
ovatis acutis ciliatis extrorsum puberulis introrsum glabris (purpurascentibus ;) corona stam. 
exteriore pateriformi integra, inter. foliolis suborbiculatis gynostegium subæquantibus ; folli- 
culis longe attenuatis. Ravines and rocky places, borders of the Rio Grande, western Техгв, 
New Mexico, and Chihuahua, westward to Sonora and San Luis Rey, California, April—June. 
(No. 1681, Wright.) Stems numerous, from a somewhat ligneous base, 1—8 feet long, slender. 
Leaves 1—2 inches long, 1-21 lines wide, the lower and middle ones more or less cordate, or 
cordate-sagittate at the base, the lobes entire or dentieulate ; uppermost leaves sometimes acute 
at each end ; petioles 2-4 lines long. Peduncles 1-2 inches long; umbel 8-12-flowered, the 
pedicels much shorter than the peduncles. Flower about one-third of an inch in diameter ; 
exterior corona in the form of a shallow cup. Gynostegium nearly sessile. Corolla brownish 
purple. Near S. lineare, Benth.* | 
€ We have Sarcostemma clausum, Roem. & Schult., from Key West, where it was found Ly the late Mr. Blodgett. 
