PAPAYACEAE 805 



broad, the margins crenulate ; stipules laciniate : peduncles exceeding the leaves : corolla 

 violet-blue, 10-14 mm. wide : petals bearded : sepals lanceolate, acuminate : capsules 

 glabrous, 6-8 mm. long : late shoots of the season bearing short-stalked cleistogenes. 



In woods and thickets, North Carolina to Kentucky, Florida and Texas. Winter to early summer. 



35. Viola rostrata Pursh. Stems clustered, erect, leafy : leaves glabrous, with 

 slender petioles, the blades cordate ovate or the lower reniform, acuminate, 1-4 cm. long, 

 the margin serrulate ; stipules laciniate, ciliate : corolla pale violet, 1.5-2 cm. broad, the 

 petals marked with dark veins, and beardless ; spur exceeding the petals : sepals linear- 

 lanceolate : capsule glabrous, 8 mm. long. 



In woods, Quebec to Michigan and along the mountains to Georgia. Spring and early summer. 



36. Viola Rafine'squii Greene. Stem slender, glabrous, branching, 7-45 cm. high : 

 leaves glabrous, the blades short-petioled or subsessile, ovate to oblong-lanceolate, crenate- 

 dentate or entire ; stipules large, foliaceous, pinnatifid : corolla yellowish white, the 

 uppermost petals bluish tinged, 10-16 mm. wide : sepals linear, nearly as long as the 

 petals : capsule 4-6 mm. long. [F. tenella Muhl., not Poir.] 



In fields and open woodlands, Maine to Michigan, Georgia and Texas. Winter and spring. 



2. CUBELIUM Raf. 



A herbaceous caulescent perennial, with nearly entire alternate leaves and small 

 greenish axillary flowers. Sepals 5, equal, not auriculate. Corolla irregular. Petals 

 erect, imbricated in the bud, the lowermost one largest and gibbous below. Stamens 5, 

 syngenesious, forming a sheath bearing minute glands at the base. Style hooked at the 

 apex. Capsule 3- valved, obscurely 3- lobed. [Solea Ging.] 



1. Cubelium cdncolor ( Forst. ) Raf. Plant pubescent, 3-9 dm. high : leaf -blades ob- 

 long or elliptic, acute or acuminate at the apex, tapering at the base to a short petiole : 

 stipules linear : flowers 8 mm. long, on short recurved peduncles, 1-3 in the axils : seeds 

 large. 



In moist woods, Ontario to Michigan, North Carolina and Kansas. Spring. 



3. CALCEOLARIA Loefl. 



Perennial herbs or rarely shrubs, with alternate or opposite leaves and small axillary 

 or racemose flowers. Sepals equal, not auriculate. Petals very unequal, the two upper 

 smallest, the lowermost largest, gibbous at base. Anthers connivent, the filaments dis- 

 tinct, the two lower glandular at the base. Capsule elastically 3- valved. 



1. Calceolaria verticillata (Ortega. ) Kuntze. Stems clustered, ascending or erect, 

 slightly pubescent, 1-4 dm. high : leaves alternate, often fascicled ; blades linear, 1.5-4 

 cm. long : stipules subulate or wanting : flowers solitary, white, nodding, 4-6 mm. long. 



In dry ground, Kansas to Colorado, Texas and Mexico. Spring and summer. 



Order 21. PASSIFLORALES. 



Herbs, tendril-bearing vines, shrubby plants or succulent trees with a milky 

 sap. Leaves alternate : blades entire or lobed. Flowers perfect, or mainly 

 dioecious, the staminate and pistillate very different. Calyx of 5 more or less 

 united sepals. Corolla of 5 distinct or partially united petals, sometimes accom- 

 panied by a fringed crown. Androecium of 5 stamens, or of 10 stamens in 2 

 unequal rows. Gynoecium of 3-5 united carpels. Ovary superior, 1-celled, with 

 3-5 parietal placentae. Stigmas entire, notched or forked. 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. PAP AW FAMILY. 

 Shrubs or trees, with a milky sap. Leaves alternate : blades ample, broad, 

 palmately 7-9-lobed. Flowers unisexual, or rarely perfect. Calyx short. Stam- 

 inate flowers with a salver-shaped corolla : tube slender : lobes 5, valvate or con- 

 volute. Androecium of 10 stamens, inserted in the throat of the corolla. Fila- 

 ments short : anthers adnate to the filaments, 2-celled. Pistillate flowers with 



