BOTANY. 67 
PETALONYX THURBERI, Gray, Pl. Thurb. р. 319. (Тав. XXI.) Valley of the Gila, May— 
June, Thurber | Schott. 
EUCNIDE BARTONIOIDES, Zucc.; Gray, Pl. Lindh. 2, p, 191. Cañons of the Rio Grande below 
San Carlos, Poor Acsi Parry. Rocky places, Howard's Springs; Zigelow. Ringgold 
Barracks; Schott. 
MENTZELIA ALBICAULIS, Dougl.; Torr. & Gray, Fl. 1, р. 534. Rocky hills on the upper Rio 
Grande and its tributaries, also in Sonora, March to September. Mountains east of San Diego, 
California ; Parry. The oily seeds are pounded and used by the Indians as an ingredient of 
their Р 016 mantica, a kind of cake. 
MENTZELIA Монти, Gray, Pl. Fendl. p. 48. Mountain ravines, Rock Creek, July; Bigelow. 
Valley of San Bernardino, Sonora, April; Capt. E. K. Smith. 
MENTZELIA MULTIFLORA, Nutt. Pl. Gamb. p. 180; Gray, Pl. Wright. 1, p. 74. Hill sides along 
the Rio Grande, from El Paso downward to Laredo, April to July. 
MENTZELIA OLIGOSPERMA, Nutt. in Bot. Mag. t. 1760; Torr. Ё Gray, Fl. 1, p. 533. Wet 
ravines on the Cibolo of the Rio Grande, July; Bigelow. 
PASSIFLORACEZ. 
PASSIFLORA AFFINIS, Engelm. in Gray, Pl. Lindh., 2, p. 233. Devil's river, Texas, October | 
(in fruit) ; Bigelow. 
PASSIFLORA TENUILOBA, Engelm. l. с. p. 192. High prairies and hill sides, Western Texas, . 
along the Rio Grande, September, October ; Parry, Schott. 
` PASSIFLORA ЕФТША, Linn. Amen. 1, p. 228, t. 19; Sp. р. 1359. Thickets, Eagle Pass, June; 
Schott. A variety which seems to be intermediate between P. fcetida, Cavan. and P. hibiscifolia, 
Lam., having the leaves of the former and the pubescence of the latter. Mr. Schott found on 
the Sierra del Pozo Verde, in Sonora, a form with velvety pubescence, and almost 3-parted 
leaves, with the divisions more or less lobed and toothed. 
PASSIFLORA MEXICANA, Juss. Ann. Mus. р. 108, t. 38, DC. Prodr. З, p. 324. Tubac, Sonora ; 
Thurber. Leaves glaucous, 2-lobed below the middle, the lobes moderately diverging, 1 to 1} 
inch long from the bifurcation, marked near the base with a few round brownish glands. 
Flowers three-fourths of an inch in diameter, pale ansia 
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CUCURBITACE A. 
SICYDIUM LINDHEIMERI, Gray, Pl. Lindh. 2, p. 194, € Pl. Wright. 1, p. 75. Presidio del Norte, 
July; Parry. Arroyos of the Limpia, Bigelow. Lower Rio Grande; Schott. Var. TENUISECTUM, 
Gray, 1. c. Between the Leone and the Rio Grande; Bigelow. Mountains of Sonora; Schott. 
CUCURBITA PERENNIS, Gray, Pl. Lindh.2, p. 193. Plains between the Rio Grande and the 
Pecos, June—July ; also at the Copper mines; Bigelow. Bottom lands of Devil's river, April 
to October; Schott. Grows in large patches; fruit the size and shape of a small orange. 
CUCURBITA DIGITATA, Gray, Pl. Wright. 2, p. 60. Valleys among the mountains of Sonora, 
July (in flower;) Schott. 
APODANTHERA? UNDULATA, Gray, l. c. Cafions of the Rio Grande, June; Bigelow, Parry. 
Santa Cruz, Sonora, June; Schott, Thurber. The Sonorians call the fruit of this plant Melon 
de Cayota. 
` OXCLANTHERA pissecta, Arnott, in Hook. Jour. Bot. 3, p. 280 ; Gray, Pl. Wright. 1, р. 75. 
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