STYKACACEAE 915 



3. Styrax grandifblia Ait. A shrub 0.5-3 m. tall, with pubescent young foliage. Leaf- 

 blades thinnish, obovate, oval or sometimes elliptic, 10-20 cm. long, obtuse or short-acumi- 

 nate, coarsely toothed or nearly entire, cuneately narrowed or nearly rounded at the base, 

 becoming glabrous above or minutely pubescent on the impressed nerves, densely and 

 finely tomentose beneath ; petioles 3-7 mm. long : racemes 0.5-1 cm. long, often leafy : 

 flowers white, solitary or 2 together : pedicels 4-9 mm. long : calyx 4-5 mm. long ; lobes 

 5, triangular, acute: corolla 2-2.5 cm. broad; lobes elliptic, acute, 10-12 mm. long, 

 slightly pubescent without : anthers bright yellow : filaments pubescent : drupe subglobose, 

 8-12 mm. in diameter, apiculate, pubescent. 



In woods, Virginia to Florida and Louisiana. 



4. Styrax platanifolia Engelm. A branching shrub 1-4 m. tall, with glab- 

 rous or almost glabrous foliage. Leaf-blades suborbicular in outline, undulate, angu 

 late, or sinuate-lobed, 5-10 cm. broad, more or less abruptly acuminate, reticulate- 

 veined, truncate or subcordate at the base, slender-petioled : racemes corymbiform : pedi- 

 cels glabrous or nearly so, subtended by minute bracts : calyx glabrous, or nearly so : 

 petals oblong or oblong-obovate, 15-19 mm. long : drupe globular, 8-10 mm. in diameter, 

 apiculate. 



In wooded bottom lands, Texas. 



2. MOHRODENDRON Britton. 



Shrubs or trees, often with some stellate pubescence. Leaves alternate, deciduous ; 

 blades commonly membranous. Flowers in racemes, white, mostly drooping. Hypanthium 

 adnate to the ovary, 4-5-ribbed, 4-5-lobed, accrescent. Petals 4-5, sometimes almost dis- 

 tinct, imbricated, erect or nearly so, convolute or imbricated. Stamens 8, 10, 12 or 16 in 

 one series, often exserted : anthers elongated, the sacs commonly free at the base. Ovary 

 inferior, 3-5-celled : style elongated : stigma scarcely enlarged. Ovules 4 in each cavity, 

 the upper pair ascending, the lower pair pendulous. Fruit nut-like, becoming dry, crowned 

 with the calyx-lobes, 2-4-winged. Seeds 1-3, elongated. \_Halegia Ellis.] The plants 

 flower in the spring. 



Fruit 2-winged, the stipe wholly included in the wings. 



Corolla 8-12 mm. long : fruit less than 3 cm. long. 1. M. parviflorum. 



Corolla 20-30 mm. long: fruit over 3 cm. long. 2. M. dipterum. 



Fruit 4-winged, the base of the stipe not included. 3. M. Carolinum. 



1. Mohrodendron parviflorum (Michx. ) Britton. A shrub similar to M. 

 Carolinum in habit, but smaller, the young leaves, pedicels and calyx densely pubes- 

 cent. Corolla white, 8-12 mm. long : drupe less than 3 cm. long, the two wings, includ- 

 ing the stipe. 



In sandy soil, southern Georgia and Florida, 



2. Mohrodendron dipterum (Ellis) Britton. A shrub or small tree, reaching a 

 height of 15 m. with a trunk diameter of 3 dm. Bark broadly fissured : twigs, leaves and 

 flowers pubescent : leaf-blades firm or somewhat leathery, oval, oblong or obovate, 

 acuminate, coarsely toothed, acute or subcordate at the base, softly pubescent beneath, 

 finely and sparsely pubescent, at least on the nerves above ; petioles stout, 1-2 cm. long : 

 pedicel about as long as the corolla : calyx 6-7 mm. long, densely pubescent ; lobes 

 triangular, acuminate : corolla campanulate, 2-3 cm. long ; lobes pubescent without, 

 oblong or oblong-obovate, obtuse or notched : stamens included : filaments and style pubes- 

 cent : drupe oblong or elliptic, 4-5 cm. long, 2-winged. 



In wet woods, Tennessee and South Carolina to Florida and Texas. Spring. SNOWDKOP TREE. 



SlLVERBELL TREE. COW LlCKS. 



3. Mohrodendron Carolinum (L. ) Britton. A shrub or tree, reaching a maximum 

 height of 25 m. and a trunk diameter of less than 1 m. Bark broken into flat ridges : 

 twigs, lower leaf-surfaces and pedicels pubescent. Leaf-blades thinnish, oblong, oval or 

 obovate, 5-17 cm. long, acuminate, finely serrate, acute or truncate at the base, glabrous 

 or minutely pubescent on the nerves above, more or less densely pubescent beneath ; 

 petioles 1-2 cm. long : pedicel about as long as the corolla : calyx 5-6 mm. long, gla- 

 brous : lobes triangular, acute : corolla campanulate, 2-2.5 cm. long ; lobes glabrous 

 without, rounded, shorter than the tube : stamens included : filaments and style glab- 

 rous : drupe oblong or oblong-obovoid, 4-5 cm. long, 4-winged, tipped with the persistent 

 style. 



In woods, Virginia to Illinois, south to Florida and Texas. SNOWDROP TREE. SILVERBELL TREE. 

 WILD OLIVE TREE. BELL TREE. OPOSSUM WOOD. RATTLEBOX. CALICO WOOD. Tiss WOOD. 



