416 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



1. Parthenocissus vitacea (Knerr) Hitchc. Spr. Fl. Manhattan 26. 1894. 



Ampelopsis quinqucfolia vitacea Knerr, Bot. Gaz. 18: 71. 1893. 



Psedera vitacea Greene, Leaflets 1: 220. 1906. 



Type locality: Not stated. 



Range: Wyoming and Michigan to Ohio and Arizona. 



New Mexico: Pecos; Sandia Mountains; Magdalena Mountains; Gila Hot Springs; 

 Burro Mountains; Guadalupe Canyon; Gray; Organ Mountains; Cedar hill; Raton. 

 Canyons, in the Transition Zone. 



3. CISSTJS L. 



A succulent vine 1 to 10 meters long, with warty bark and forking tendrils; leaves 

 3-foliolate, fleshy, the leaflets 3 to 10 cm. long, coarsely toothed, the terminal one 

 sometimes 3-lobed; flowers in trichotomous umbel-like cymes; berries obovoid to 

 globose, 10 to 12 mm. long, blackish, on recurved pedicels. 



1. Cissusincisa (Nutt.) Desmoul.; S. Wats. Bibl. Ind. 173. 1878. 

 Vitis incisa Nutt.; Torr. & Gray, Fl. N. Amer. 1: 243. 1840. 

 Type locality: "Arkansas." 



Range : Florida to Arkansas, Texas, and southern New Mexico. 

 New Mexico: Guadalupe Canyon (Mearns 691). 



Order 33. MALVALES. 



89. MALVACEAE. Mallow Family. 



Annual or perennial herbs (one species suffruticose) with simple, alternate, petiolate, 

 variously lobed or dissected leaves, and rather large and conspicuous flowers; plants 

 mostly pubescent, frequently with stellate hairs ; inflorescence axillary or by reduction 

 of the uppermost leaves becoming racemose or paniculate; calyx of 5 sepals more or 

 less united at the base, sometimes subtended by few to several bracts forming an 

 involucre; petals 5, more or less united at the base and with the base of the tube of the 

 numerous monadelphous stamens; pistil of 5 to many carpels with united styles and 

 separate stigmas; fruit a 5 to many-celled capsule of dehiscent or indehiscent, 1 to 

 several-seeded carpels. 



KEY TO THE GENERA. 



Fruit a loculicidal capsule; stamen column anther-bearing 

 for a considerable part of its length. 



•Annuals; calyx inflated, conspicuously nerved 1. Trionum (p. 417). 



Perennials; calyx neither inflated nor conspicuously 



nerved 2. Hibiscus (p. 417). 



Fruit of several radially disposed carpels, these separating 

 at maturity; stamen column anther-bearing mostly 

 at the summit. 

 Carpels indehiscent; ovules solitary; styles stigmatic 

 on the inner side. 



Bractlets wanting; carpels 5 to 9 3. Sidalcea (p. 418). 



Bractlets 1 to 3; carpels more numerous. 



Carpels beaked; bractlets 1 to 3; flowers 



bright purplish red 4. Callirrhoe (p. 4 18) . 



Carpels not beaked; bractlets 3; flowers 



white to rose-colored 5. Malva (p. 419). 



Carpels dehiscent; ovules 1 to several in each cell; 

 stigmas capitate. 

 Seeds 2 or more in each carpel. 



Calyx without bracts; seeds several in each 

 carpel. 



