26 MAGNOLIACEAE. 



Petals very broad: fruits not tuberculate. 



Sepals over 10 mm. wide : outer and inner petals about equal 



in length. 1. A. (Jahra. 



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



the inner. 2. A. pahistris. 



Petals narrow : fruits strongly tuberculate. 3. A. squamosa. 



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: 

 fruit 8-12 cm. long: seeds 1.5-20 mm. long. 



The Pond-apple grows in the wet coastal hammocks of tropical and subtropical 

 peninsular Florida, those of the Everglade Keys and the Florida Keys. The brown 

 and yellow-streaked wood is rather coarse-grained, light, soft, and weak. (Bah., 

 Cuba.) 



2. A. palustris L. Small tree or shrub: 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. 



TTie Alligator-apple grows in the Everglades about the Everglade Keys and on 

 the adjacent hammock islands. Also on the Florida Keys. The wo(k1 is nearly 

 similar to that of the Pond-apple. (IV. J.) ' 



3. A. squamosa L. Tree with glabrous or nearly glabrous twigs: leaf -blades 

 mainly oblong or elliptic, varying to oblong-lanceolate, mostly 10-15 cm. long, 

 rather slender-petioled : sepals broadly deltoid, about 2 mm. long, acute: outer 

 petals narrowly oblong to linear-lanceolate, 24-28 mm. long: berries ovoid to 

 globose-ovoid, 6-10 cm. long, tuberculate, yellowish-green. 



The Sugar-apple grows in hammocks and cultivated grounds on the Florida 

 Keys. Naturalized from tropical America. The wood has not been studied. {Cont.) 



Family 2. MAGNOLIACEAE. Magnolia Family. 



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

 whorlecl: blades entire, toothed, or lobed. Flowers perfect or monoe- 

 cious. Calyx of 3 petaloid sepals or rarely more. Corolla of 5 imbri- 

 cate petals as large as the sepals or larger, or more. Androecium of many 

 stamens or rarely few. Gynoeeium of several or many distinct carpels. 

 Fruit a cone of accrescent carpels which become baccate or follicular. 



Leaf-blades not lobed : nature carpels berry-like follicles. 1. Magnolia. 



Leaf-blades lobed : mature carpels samara-like. 2. Libiodexdeon. 



1. MAGNOLIA L. Shrubs or trees. Leaves deciduous or persistent: 

 blades entire or auricled at the base. Flowers perfect, white. Sepals and 

 petals about equal in size. Fruit an echinate cone. — Spr., or spr. and sum. 



Leaf-blades thick-leathery, very thick, persistent, brown or rusty-tomentose beneath. 



1. M. foetida. 

 Leaf-blades membranous, sometimes firm, usually deciduous, gla- 

 brous, glaucous or silky beneath. 

 Leaf -blades not auricled at the base : flowers short. 2. J/, rirginiana. 



Leaf-blades auricled at the base : flowers long. 



Fruit oblong-conic : carpels with long curved beaks : leaf- 

 blades pale green beneath. 3. M. pyramidata. 

 Fruit subglobose : carpels obtuse or acutish : leaf -blades 



very glaucous beneath. 4. M. macrophylla. 



1. M. foetida (L.) Sarg. A tree becoming 20 m. tall, the twigs tomentose: 

 leaf-blades elliptic, oval, oblanceolate, or rarely ovate, 10-30 cm. long, shining 

 above: flowers creamy-white, lemon-scented, broadly campanulate, 10-20 cm. 

 wide: petals with suborbicular or orbicular-obovate blades 5-10 cm. wide: 

 fruit oval, 8-10 cm. long: seeds 1.5-2 cm. long. 



The Magnolia grows in rich moist soil and hammocks In northern Florida and 

 In the peninsula as far south as the Everglade region. The creamy-white wood is 

 rather close-grained, heavy, and hard. (Cont.) 



