WOOTON AND STANDLEY FLOKA OF NEW MEXICO. 517 



3. aUAMOCLIT Moench. 



Anmial or perennial twining vines, glabrous tlirGUgliout, with entire or lobed leaves 

 and axillary few-flowered cymes of bright scarlet flowers on peduncles exceeding the 

 leaves; sepals mostly equal; corolla about 25 mm. long, narrowly funnelform to salver- 

 form, the limb short and spreading, not lobed, more or less pentagonal, expanding in 

 daylight; stamens exserted; ovary 2-celled or falsely 4-celled; capsules subglobose, 

 7 to 8 mm. in diameter; seeds 4. 



KEY TO THE SPECIES. 



Leaves entire or nearly so 1 . Q. coccinea. 



Leaves deeply 3-lobed, the lateral lobes usually again lobed 2. Q. hederifolia. 



1. Quamoclit coccinea (L.) Moench, Meth. PI, 453. 1794. 

 Ipomoea coccinea L. Sp. PI. 160. 1753. 



Type locality: "Habitat in Domingo." 



Range: Tropical regions of America, frequently escaped in the United States. 



New Mexico: Santa Fe; Pecos; Animas Creek; Fort Bayard. 



2. Quamoclit hederifoUa (L.) Choisy in DC. Prodr. 9: 336. 1845. 

 Ipomoea hederifolia L. Syet. Veg. ed. 10. 2: 925. 1759. 



Type locality: Not stated. 



Range: Western Texas to southern Arizona and southward. 

 New Mexico: Las Vegas; Fort Bayard; Kingston; Organ Mountains; Gray; White 

 Mountains. Moist ground, in the Upper Sonoran and Transition zones. 



4. IPOMOEA L. Morning-glory. 



Annual or perennial herbs with twining or erect stems; leaves entire or lobed; 

 flowers axillary, solitary or in few-flowered cymes; sepals membranous or rather fleshy, 

 sometimes becoming leathery, closely imbricated, not elongated, persistent; corolla 

 white, pink, blue, or purple, funnelform, the limb usually spreading and- relatively 

 ample, pentagonal or circular; stamens included; ovary 2 to 4-celled; capsules 2 to 

 4-valved;. seeds often pubescent. 



KEY to the species. 



Stems erect, stout, much branched, forming dense clumps; leaves 



linear 1. /. leptophylla. 



Stems twining or decumbent, slender; leaves not linear. 



Sepals with green foliaceous tips, acute or attenuate, hirsute. 



Leaves entire or nearly so 6. /. purpurea. 



Leaves 3-lobed or 3-parted. 



Tips of the sepals merely acute 7. I. hirsutula. 



Tips of the sepals with long attenuate tips. 



Corolla 3 cm. long or less; sepals scarcely dilated 



at the base, the tips spreading 8. /. desertojum. 



Corolla 8 cm. long; sepals much dilated at the 



base, the tips erect 9. /. lindheimeri. 



Sepals scarious, at least on the margins, not with foliaceous tips, 

 rounded to acuminate at the apex, glabrous or nearly so. 



Leaves cordate-ovate, not cleft 5. /. cardiophylla. 



Leaves 5 to 7-cleft. 



Corolla more than 5 cm. long 2. /. tenuiloba. 



Corolla less than 3 cm. long. 



Sepals muricate; perennial from a tuberous root. . 3. /. muricata. 

 Sepals smoolxi; annual 4. /. costellata. 



