MAGNOLIACEAE. 75 



occasionally more, or wanting. Androecium of several or many hypogy- 

 nous stamens. Gynoeeiurn of 1, several, or many distinct carpels. Fruit 

 an achene or a follicle, or baccate. 



1. VIORNA Keichenb. Perennial herbs or vines. Leaf-blades entire or 

 lobed, or pinnate. Flowers solitary or few together. Sepals 4 or 5, thick, 

 valvate, petal-like. Petals wanting. Stamens erect: anthers long and narrow. 

 Achenes with long plumose, silky, or naked style-tails. 



1. V. Baldwin!! (T. & G.) Small. Plants 2-6 dm. tall: leaf -blades oblong 

 to lanceolate or linear, sometimes pinnately parted, 1.5-10 cm. long: sepals 

 purple or paler, 2.5-4 cm. long, each with a thin crisped margin and a slender 

 apex: achene-bodies 4.5-5.5 mm. wide, with style-tips 6-10 cm. long. Ever- 

 glades and pinelands. PIXE-HYACIXTH. , 



FAMILY 2. ANNONACEAE. CUSTARD-APPLE FAMILY. 



Shrubs or trees. Leaves alternate : blades entire. Flowers perfect, 

 monoecious, or dioecious. Calyx of 3, or 2, sepals. Corolla of mostly 6 

 petals much larger than the sepals, those of the inner series smaller than 

 those of the outer, or wanting. Androecium of many stamens, the anthers 

 terminating in a blunt glandular appendage. Gynoeciuin of few or many 

 distinct carpels. Fruit a simple or aggregate berry. 



Anther-sacs separated : petals Imbricate : ovules numerous : fruits with distinct 

 carpels. 1. ASIMINA. 



Anther-sacs contiguous : petals valvate : ovules solitary : fruits with 



confluent carpels. 2. ANXOXA. 



1. ASIMINA Adans. Ill-scented plants. Leaves mostly deciduous: 

 blades broadened upward. Petals 6, much larger than the sepals, spreading. 

 Carpels few; style subulate. Fruits with distinct carpels. PAP AW. 



1. A. reticulata Shuttl. Shrub 5-10 dm. tall, the twigs densely tomentose: 

 leaf- blades narrowly oblong to oblanceolate or cuneate, 2.5-9 cm. long: inner 

 petals broadly ovate, mostly less than 15 mm. long: berries mostly oblong, 

 3.5-5.5 cm. long. Pinelands. CUSTARD-APPLE. 



2. ANNONA L. Pungent-aromatic plants. Leaves persistent: blades 

 oblong, oval, or ovate. Petals larger than the sepals, converging. Carpels 

 numerous: style linear. Fruit aggregate. 



Sepals over 10 mm. wide : outer and Inner petals about equal in length. 



1. A. glabra. 

 Sepals less than 9 mm. wide : outer petals much longer than the 



inner. 2. A. palustris. 



1. A. glabra L. Tree becoming 14 m. tall: leaf -blades oblong to oval or 

 ovate, 10-18 cm. long: outer petals 3-3.5 cm. long: filaments 4 mm. long: 

 fruits 8-12 cm. long: seeds 15-20 mm. long. Hammocks. F. K. (Bah., 

 Cuba.) POND- APPLE. 



2. A. palustris L. Shrub or small tree: leaf -blades oblong to ovate or oblong- 

 lanceolate, 3-12 cm. long, or rarely larger: outer petals 1.5-2 cm. long: fila- 

 ments 3 mm. long: fruit 5-7 cm. long: seeds 9-12 mm. long. Everglades. 

 F. K. (Bah., Cuba, Ant.) ALLIGATOR- APPLE. 



FAMILY 3. MAGNOLIACEAE. MAGNOLIA FAMILY. 



Shrubs, trees, or vines. Leaves alternate, sometimes apparently 

 whorled : blades entire, toothed, or lobed. Flowers perfect or monoecious. 



