CORYLACEAE. 13 



apex, pale beneath: staminate aments with finely pubescent, blunt bracts: 

 capsules 4 or 5 times as long as the pedicels. 



The Black-willow grows on river banks in northern Florida. The reddish- 

 brown heart-wood is light, soft, and weak. (Cont.) 



2. S. marginata Weimer. Small tree or spreading shrub, the twigs reddish: 

 leaf-blades mainly oblong, lanceolate, or ovate-lanceolate, 2-5 cm. long, mostly 

 acute or blunt at the apex, cuueate to truncate at the base: staminate aments 

 with densely pubescent acute or acutish bracts: capsules about twice as long 

 as the pedicels. 



The Gulf-willow grows in northern Florida. The wood is probably similar 

 to that of the Black-willow. (Cont.) 



3. S. longipes Anders. Tree becoming 10 m. tall or shrub, the twigs gray or 

 gray-brown: leaf -blades narrowly lanceolate, 10-15 cm. long: staminate 

 aments 4-10 cm. long, the bracts finely ciliate: capsules ovoid in outline, 3 or 

 4 times as long as the pedicels. 



Ward's-willow grows in low grounds, in northern Florida. The reddish- 

 brown heart-wood is rather close-grained, light, and soft. {Cont.) 



4. S. amphibia Small. Small tree or shrub, the twigs purplish or purple: 

 leaf-blades linear-lanceolate, lanceolate, or oblong, 3-13 cm. long: staminate 

 aments 1.5-5 cm. long, the bracts finely pubescent: capsules conic in outline, 

 about 3 times as long as the pedicels. 



The Amphibious-willow grows in wet grounds and hammocks in peninsular 

 Florida almost as far south as Cape Sable. The brown heart-wood is close-grained, 

 light, and soft. (Endemic.) 



5. S. floridana Chapm. Small tree or shrub, the twigs sparingly pubescent: 

 leaf-blades oblong to oblong-lanceolate, 5-8 em. long, or larger on twigs, 

 acute, sharply serrulate, dark-green above, glaucous beneath, rounded or 

 truncate at the base: fruiting aments oblong-cylindric, 4-7 cm. long: capsules 

 ovoid-conic, 6-8 mm. long. 



The Fi.oriha-wii.low grows on river Iianks in western Florida. The wood has 

 not yet been studied. Not recently collected in the state, but found in southern 

 Georgia. 



Order FAGALES. 



Shrubs or trees. Leaves alternate: blades simple. Flowers monoe- 

 cious or rarely dioecious, at least the staminate borne in aments, the pis- 

 tillate sometimes with an involucre which becomes a bur or cup in fruit. 

 Calyx usually present. Corolla wanting. Fruit a nut or rarely a samai-a. 



Staminate and pistillate flowers in aments : fruit not with a bur or a cup. 



Staminate flowers solitary in the axil of each bract, without a calyx : pistillate 



flowers with a calyx. Fam. 1. Coeylaceae. 



Staminate flowers 2-3 together in the axil of each bract, 



each with a calyx : pistillate flowers without a calyx. Fam. 2. Betulaceae. 

 Staminate flowers in aments : pistillate often solitary, the 



involucre becoming a bur or cup. Fam. 3. Fagaceae. 



Family 1. CORYLACEAE. Hazel-nut Family. 



Shrubs or trees, the wood close-grained. Leaves deciduous: blades 

 mostly doubly toothed. Staminate aments drooping, with each bract sub- 

 tending one flower, the calyx wanting. Pistillate aments not drooping, 

 each bract bearing 2 or 3 pistils, the involucre of a bract and 2 scales. 

 Fruit consisting of one or more accrescent bracts each subtending or inclos- 

 ing 1, 2 or 3 nuts. 



Fruiting bracts flat, 3-lobed, the terminal lobe toothed. 1. Carpinos. 



Fruiting bracts bladder-like. 2. Ostrya. 



