FLOWERING PLANTS AND FERNS OF ARIZONA 863 



Buffalo-gourd, calabazilla. A conspicuous, rank-growing, ill- 

 smelling plant with numerous stems up to 6 m. (20 feet) long, and 

 striped gourdlike fruits about 10 em. (4 inches) in diameter. The 

 fruits were eaten by the Indians of Arizona cooked, or dried for winter 

 use, and the seeds were eaten in the form of mush. This plant should 

 be useful as a ground cover. 



2. Cucurbita digitata A. Gray, PI. Wright. 2: 60. 1S53. 



Graham County to Maricopa County, south to Cochise. Santa 

 Cruz, Pima (and doubtless Yuma) Counties, 5,000 feet or lower, dry 

 plains and mesas, June to October. Southwestern New Mexico to 

 southeastern California and northern Mexico. 



Fruit at maturity pale yellow, striped longitudinally. 



3. Cucurbita palmata S. Wats., Amer. Acad. Arts and Sci. Proc. 11: 



137. 1876. 



Near Boulder Dam. Mohave County (Clover 4196), Yuma County. 

 1.000 feet or lower, sandy soil of plains and mesas, July (?) to Septem- 

 ber. Southwestern Arizona, southern California, and Baja Cali- 

 fornia. 



Sometimes called coyote-melon. 



5. ECHIXOPEPOX 



Plant annual, with slender climbing stems; leaves shallowly lobed. 

 cordate at base; flowers monoecious, the staminate ones in long 

 racemes, the pistillate flowers solitary; corolla of the staminate flowers 

 7 to 8 mm. in diameter, glandular-punctate, the lobes triangular; 

 fruit ovoid, not more than 1.5 cm. in diameter, spiny, opening by an 

 apical lid, commonly 3-celled. 



1. Echinopepon wrightii (A. Grav) S. Wats., Torrev Bot. Club Bui. 13: 

 158. 1887. 



ElaUnum (?) wrightii A. Gray, PI. Wright. 2: 61. 1853. 



Santa Cruz and Pima (doubtless also Cochise) Counties. 3.000 to 

 4,000 feet, along streams, climbing over shrubs, August and September. 

 Southwestern Xew Mexico, southern Arizona, and Mexico. 



0. ECHIXOCYSTIS. Mock-cucumber 



Stems slender, climbing, from an annual root ; leaf blades thin, deeply 

 lobed; flowers monoecious, those of both sexes from the same axils, 

 the staminate ones numerous in long compound racemes, the pistillate 

 flowers few or solitary; corolla not punctate, the lobes ligtilate- 

 lanceolate; fruit ovoid, up to 2.5 cm. in diameter, armed with soft 

 spines, irregularly dehiscent. 



1. Echinocystis lobata (Michx.) Torr. and Grav, Fl. North. Amer. 1: 

 542. 1S40. 



Sicyos lobata Michx., Fl. Bor. Amer. 2: 217. 1803. 



Flagstaff, Coconino County, alluvial soil {Thomber 8579V New 

 Brunswick to Manitoba and southern Idaho, south to Pennsylvania, 

 Texas, and northern Xew Mexico and Arizona. 



286744°— 42 55 



