808 PASSIFLOEACEAE 



Order 21. PASSIFLORALES. 



Herbs, vines or shrubby plants, or succulent trees with a milky sap. Leaves 



alternate : blades entire or lobed. Flowers perfect, or dioecious. Calyx of 4 or 



5 more or less united sepals. Corolla of 4 or 5 distinct or partially united petals, 



sometimes accompanied by a fringed crown, or rarely wanting. Androecium of 



5 stamens, or of 10 stamens in 2 unequal rows. Gynoecium of 3-5 carpels. 



Ovary superior. Fruit a berry or a capsule. 



Corolla not accompanied by a crown: flowers mainly dioecious, the staminate and pistillate different. 



Fam. 1. Papayaceae. 

 Corolla accompanied by a crown: flowers perfect, all alike. Fam. 2. Passifloraceae. 



Family 1. PAPAYACEAE Blume. Papaw Family. 



Shrubs or trees. Leaves with ample palmately 7-9-lobed blades, or some- 

 times pinnately lobed. Corolla salver-shaped. Stamens 10 : filaments adnate 

 to the corolla-tube. Anthers erect. Fruit baccate, borne near the top of the 

 stem. 



1. CARICA L. 



Characters of the family. Custard Apple. Papaw. 



1. Carica Papaya L. Stem 3-6 m. tall, simple, leafy at the top : leaf -blades 

 3-^ dm. broad, on stout sjjreading petioles: staminate flowers in panicles: pistillate 

 flowers in the leaf -axils: corolla yellow or reddish, that of the pistillate flower the 

 larger: berry oblong to subglobose, 2-18 cm. long. 



In woods and on roadsides, peninsular Florida and the Keys. Naturalized from tropical 

 America. 



Family 2. PASSIFLORACEAE Dumort. Passion-flower Family. 



Perennial herbs, vines or shrubby plants, often climbiiig by means of 

 tendrils. Leaves alternate : blades simple or rarely compound : stipules usually 

 present. Flowers perfect or rarely polygamous, regular. Calyx of 5 partially 

 united sepals. Corolla of 5 petals inserted in the throat of the calyx, near a 

 filamentous crown, or obsolete. Androecium of 5 stamens. Filaments mona- 

 delphous, adhering to the stalk of the ovary. Gynoecium a compound pistil. 

 Ovary usually stalked, 1-celled, with parietal placentae. Styles as many as the 

 placentae, usually 3, club-shaped. Ovules numerous anatropous. Fruit fleshy, 

 berry-like, indehiscent. 



1. PASSIFLORA L. 



Perennial vines. Leaf-blades entire, lobed or parted. Corolla rotate. Crown 



filamentous, single, double or triple. Anthers versatile. Passion Flower. 



Peduncle bearing a conspicuous involucre of 3 bracts near the calyx. 



Leaf-blades hastatcly lobed: bracts of the involucre pinnately 1-3-divided into very slender 



segments. 1. P. foelida. 



Leaf-blades palmatelv lobed: bracts of the involucre entire. 



Leaf-lobes toothed: stipules minute: petiolar glands sessile. 2. P. incarnata. 



Leaf-lobes entire: stipules foliaceous: petiolar glands stalked. 3. P. pallens. 



Peduncle without an involucre, or this obsolete. 

 Petioles without glands. 



Cymes several-flowered: berries pubescent. 4. P. sex/lora. 



Cymes 1-flowered: berries glabrous. 



Peduncles destitute of bracllets: upper leaf-blades with lobes broader 



than long. 5. P. lutea. 



Peduncles with 2 or 3 bractlets: upper leaf-blades with lobes about as 



broad as long. 6. P. affinis. 



Petioles with glands at the middle, or at the base of the leaf-blade. 

 Foliage glabrous or sparingly pubescent: peduncles single. 

 Petiolar glands elevated. 



Corolla over 3 cm. wide: leaf-blades, or lobes, toothed. 



Ovary glabrous: seeds finely pitted. 7. P. inan oena. 



Ovary pubescent: seeds coarsely wrinkled. 8. P. Warrningii. 



Corolla less than 2 cm. wide: leaf-blades, or lobes, not too bed. 9. P. suberosa. 



Petiolar glands sessile, disk-like. 



Middle, lobe of the leaf-blades less than J^ as long as the nearly 



linear lateral ones. 10. P. tenuiloba. 



Middle lobe of the leaf-blade as long as or nearly as long as the 



cuneate lateral ones. 11. P. Bigelovii. 



Foliage tomentose: peduncles clustered. 12. P. mulliflora. 



