FLOWERING PLANTS AND FERNS OF ARIZONA 865 



Key to the species 



1. Leaf blades cleft to the middle or deeper, the lobes oblong, more or less 

 lobulate 1. S. laciniatus. 



1. Leaf blades not cleft to the middle, angulate or very shallowly lobed, the lobes 

 broadly triangular, merely dentate 2. S. ampelophyllus. 



1. Sicyos laciniatus L., Sp. PL 1013. 1753. 



Huaehuca Mountains, Cochise County (Lernmon in 1882), Sep- 

 tember. Southeastern Arizona and Mexico. 

 The Arizona form is var. genuina Cogn. 



2. Sicyos ampelophyllus Woot. and Standi., TorrevBot. Club Bui. 36: 



111. 1909. 



Sicyos laciniatus var. subintegrus Cogn. in DC, Monog. Phan. 

 Cucurb. 880. 1881. 



Yavapai, Cochise, and Pima Counties (probably elsewhere), 4,000 

 to 5.500 feet, in shade along streams, August and September. New 

 Mexico and Arizona. 



10. SICYOSPERMA 



Plant annual; stems slender, climbing; leaf blades thin, angulate, or 

 shallowly lobed with broad triangular lobes; flowers monoecious, the 

 inflorescences few-flowered, axillary, the pistillate flowers conspicu- 

 ously bracteate; staminate corolla rotate, whitish; fruit small, dry, 

 without spines. 



1. Sicyosperma gracile A. Gray, PL Wright, 2: 62. 1853. 



Gila. Cochise, Santa Cruz, and Pima Counties, 3,600 to 5,500 feet, 

 along streams in partial shade, August and September. Southern 

 Arizona and northern Mexico. 



11. CYCLANTHERA 



Plant annual, glabrous; stems slender, climbing; leaves mostly 

 pedately compound, the divisions stalked; flowers of both sexes from 

 the same axils, the staminate flowers in small racemes or panicles, 

 the pistillate flowers solitary; corolla rotate, whitish; fruit dry, nar- 

 rowly ovoid, somewhat asymmetric, acuminate, 2 to 3 cm. long, 

 armed with long slender smooth spines, bursting irregularly. 



1. Cyclanthera dissecta (Ton*, and Gray) Am., London Jour. Bot. 

 3: 280. 1841. 



Dwcanthsra dissecta Torr. and Grav, Fl. North Amer. 1: 697. 

 1840. 



Santa Rita and Baboquivari Mountains (Pima County), 4,000 (to 

 5,000?) feet, along streams, September and October. Kansas to 

 Louisiana, Texas, southern Arizona, and Mexico. 



120. CAMPANULACEAE. Bellflower family 



Contributed by Rogers McVaugh 



Plants herbaceous or rarely sufTrutescent, the juice usually milky: 

 leaves simple, alternate, exstipulate; flowers normally 5-merous (tne 



carpels 2 to 5, in Specularia the calyx lobes 3 to 5) ; corolla sympeta- 

 lous; style 1; ovary usually inferior or partly so; fruit a capsule; 

 seeds numerous, minute. 



