TKEES AND SHKUBS OF MEXICO ' 



By Paul C. Standley, 



113. PASSIFLORACEAE. Passionflower Family. 

 (Contributed by Mr. Ellsworth P. Killip.) 

 Uefeeence: Masters in Mart. Fl. Bras. 13i: 530-G27. 1872. 



1. PASSIFLORA L. Sp. PI. 95.5. 1753. 



I Usually scandent herbs, frequently woody at base, rarely shrubs; leaves 

 alternate, stipulate, petiolate, entire, lobed, or divided; inflorescence axillary, 

 f he peduncles usually in pairs and 1-flowered ; flowers perfect, often showy ; 

 sepals 5 ; petals 5 or wanting ; fruit variable, indehiscent, pulpy within. 



About 40 species of this genus occur in Mexico, but only two can properly 

 be considered shrubs. 



Flowers less than 4 cm. wide ; petals obovate, less than twice as long as fila- 

 ments of corona 1. P. fruticosa. 



Flowers more than 6 cm. wide ; petals linear, more than twice as long as 

 filaments of corona 2. P. palmeri. 



1. Passiflora fruticosa Killip, Journ. Washington Acad. Sci. 12: 256. 1922. 

 Baja California. 



Low shrub with an erect caudex, 20 to 40 cm. high, and a few short 

 sprawling branches, densely lanate throughout ; leaves 1.5 to 2 cm. long, 3-lobed ; 

 peduncles 1 to 2.5 cm. long. 



2. Passiflora palmeri Rose, Contr. U. S. Nat. Herb. 1: 131. 1892. 

 Baja California ; type from Carmen Island. 



Low flat-topped shrub, 50 cm. high, SO to 120 cm. wide ; leaves 1.5 to 4 cm. 

 long, 2 to 5 cm. broad ; peduncles 4 to 5 cm. long ; sepals and petals white ; 

 corona filaments blue and white. "Sandfa de la Pasion." 



114. CARICACEAE. Papaw Family. 



Refeeence: Solms-Laubach in Mart. Fl. Bras. 133: 175-196. 1889. 



Trees or shrubs, rarely herbs, with milky juice ; leaves alternate, long-petio- 

 late, digitately compound, or simple and usually deeply lobate, without stipules ; 

 flowers perfect or more com.monly unisexual and dioecious, the pistillate soli- 

 tary and axillary or in few-flowered panicles; calyx small, rotate or caiupanu- 

 late, 5-lobate; staminate corolla with an elongate tube, the limb 5-lobate; pis- 



^ The first installment of the Trees and Shrubs of Mexico comprising the 

 families Gleicheniaceae to Betulaceae, was published as Part 1 of Volume 23, 

 Contributions from the U. S. National Herbarium, pp. 1-170, October 11, 1020 ; 

 the second, including the families Fagaceae, to Fabaceae, as Part 2, pp. 171-515, 

 July 14, 1922 ; the third, including the families Oxalidaceae to Turneraceae, as 

 Part 3, pp. 517-848, July, 1923. 



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