PASSIFLORAGEAE (PASSION FLOWER FAMILY) 58V 



42. V. rostrkta Pursh. (Long-spurkbd V.) Stems often nuiflerous, com- 

 monly 1-1.2 dm. high ; leaves round-heart-shaped, nearly or quite glabrous, ser- 

 rate, the upper acute or pointed ; petals lilac-colored with a violet spot near the 

 center, borne on long peduncles above the leaves ; clelstogamous flowers with 

 minute or abortive petals appearing later on short peduncles from the axils of the 

 upper leaves ; capsules ovoid, 3-5 mm. long, glabrous ; seeds yellowish-brown. — 

 Shaded hillsides, w. Que. to Mich., and southw. in the Alleghenies to Ga. 



§ 7. Style much enlarged upward into a globose hollow summit with a wide ori- 

 fice on the lower side (Fig. 812) ; stipules large, leaf-like, lyrate-pinnatifld. 



stipules pinnatisect at the base ; upper leaves crenately serrate ; introduced 



Petals 2-3 times as long as the sepals 48. F. tricolor. 



Petals seldom longer than the sepals 44. F. arvensis. 



Stipules palmately pectinate at the base ; upper leaves entire or nearly so ; 



Indigenous 46. F. liaflnesqiiii 



43. V. TRf COLOR L. (Pansy, Heart's-base.) Stems angled, 1.5-3 dm. 



high ; lower leaves roundish or cordate, upper oblong, crenate ; flowers large 

 and widely spreading, variously marked with yellow, white, and 

 purple ; capsules ovoid ; seeds brown. — An escape from cultiva^ 

 tion, rarely persisting. (Introd. from Eu.) Fig. 812. 

 K 44. V. ARVENSIS Murr. (Wild Pansy.) Similar to the pre 

 ceding, but smaller; petals all pale yellow, usually shorter than 

 the rather long lanceolate acute sepals; capsules globose. — Old 

 fields, frequent, Nfd. to N. E. and Ont. (Nat. from £u.) 

 >--" 45. V. Rafin^squii Greene. (Wild Pansy.) Very slender, 

 often branched from the base ; root annual ; leaves small, the 

 earliest suborbioular, on slender petioles, the later obovate to 

 linear-dblanceolate, attenuate at the base ; internodes usually 

 exceeding the leaves ; flowers small, 7-10 mm. long, the obovate 



812. V. tricolor, bluish-white to cream-colored petals nearly twice the length ol 

 the sepals. ( V. tenella Ral, not Poir. ; V. tricolor, var. arvensii 



Man. ed. 6, not DC.) — Woods and open places, N. Y. to Mich., Tex., and Ga. 



PASSIFLORACEAE (Passion Flower Family) 



Herbs or woody plants, climbing by tendrils, with perfect flowers, 5 monadel- 

 phous stamens, and a stalked 1-celled ovary free from the calyx, with 3 or 4 

 , parietal placentae, and as many club-shaped styles. 



1. PASSIFLdRA L. Passion Flower 



Calyx of 5 sepals shortly united at the base ; the throat crovmed vrith a double 

 or triple fringe. Petals 5, on the throat of the calyx. Filaments united into a 

 tube which sheathes the long stalk of the ovary, separate above ; anthers large, 

 fixed by the middle. Berry (often edible) many-seeded. Leaves alternate, 

 generally palmately lobed, with stipules. Peduncles axillary, jointed. — Ours 

 are perennial herbs. (An adaptation ot flos passionis, a traiislation otfior della 

 passions, the popular Italian name early applied to the flower from a fancied 

 resemblance of its parts to the implements of the crucifixion.) 



1. P. Mtea L. Smooth, slender; leaves obtusely 3-lobed at the summit, the 

 lobes entire; petioles glandless ; flowers greenish-yellow, 2.5 cm. broad; fruit 

 1.2 cm. in diameter. — Damp thickets, s. Pa. to Mo., Tex., and Fla. 



2. P. incarnita L. Pubescent ; leaves Z-b-cleft, the lobes serrate, the base 

 bearing 2 glands ; flower large (5 cm. broad), nearly white, with a triple purple 

 and flesh-colored crown ; involucre 3-leaved ; fruit as large as a hen's egg. -^ 

 Dry soil, Va. to Fla., w. to Mo. and Tex. — Fruit called Maytops. 



