HOUSE, THE GENUS IPOMCEA 



233 



Leaf-blades pedately 5-9-divided. 

 Sepals equal; corolla rose-purple. 

 Sepals unequal; corolla cream-colored with a 

 purple throat. 

 Stems trailing or twining. 



Corolla 15 mm. long or less; leaf-blades palmately 



divided. 

 Corolla 3-8 cm. long. 



Sepals attenuate-acuminate; corolla 4 cm. long. 

 Foliage pubescent; segments of the leaf -blades 

 entire; sepals keeled. 



Leaf-blades pilose and ciliate. 

 Leaf-blades finely pubescent. 

 Foliage glabrous; segments of the leaf-blades 

 toothed. 

 Sepals lanceolate, acute. 



Segments of the leaf-blades oblong-lanceolate 

 and obtuse. 



Corolla 3 cm. long, funnelform. 

 Corolla 5 cm. long, subsalverform. 

 Segments of the leaf-blades acute or acuminate. 

 Sepals glabrous; corolla 7-8 cm. long. 

 Sepals setosely-hirsute; leaf -blades densely 

 sericeous-pubescent . 

 Perennials, from tuberous-like roots. 



Leaf-blades with 5-7, linear or filiform segments. 

 Corolla white, 8-10 cm. long; stems twining. 

 Corolla purple, 2-5 cm. long. 



Leaf-blades sessile or petioles shorter than the 

 blades; peduncles shorter than the petioles. 

 Sepals 5-6 mm. long, or less. 



Plant strict, the filiform leaf-segments rare- 

 ly over 1 cm. long. 

 Plant lax and branching, the linear-spatu- 

 late leaf-segments 1-3 cm. long. 

 Sepals 7-9 mm. long; peduncles 1-3 cm. long. 

 Leaf-blades long-petioled; sepals unequal. 

 Leaf-blades entire or cuneate at the base. 



Blades with 1-2 obliquely ascending lobes at the 



base. 

 Blades incised-dentate at the broad apex. 



104. 



105. 



110. 

 111. 



112. 



113. 



/. costellata. 

 I. painteri. 



106. /. wrightii. 



107. /. delphinifolia. 



108. /. leptotoma. 



109. /. divergens. 



I. pedatisecta. 

 I. valida. 



I. tenuiloba. 



I. pilosissima. 



114, 7. leptosiphon. 



115. /. muricata. 



116. 

 117. 

 118. 



119. 

 120. 



I. patens. 

 I. plummerce. 

 I. lemmoni. 



I. madrensis. 

 I. egregia. 



103. Ipomoea temifolia Cav. Ic. 5 : 52. pi. 478. f. 1. 

 DC. Prodr. 9: 353. 1845. 



1794.— Choisy in 



Convolvulus ternijolius Spreng. Syst. 1: 613. 

 Leptocallis ternata G. Don, Gen. Syst. 4: 260. 



Type locality: Acapulco, Mexico. 

 Not known by any recent collection. 



1825. 

 1838. 



