270 STYRACACE^E. (STORAX FAMILY.) 



tusc, ciliatc. (I. monticola, Gray?) Sandy margins of swamps, Florida, and 

 northward. April. A shrub or small tree. Leaves l'-4' long. 



6. I. Amelanchier, M. A. Curtis. Leaves oblong, barely acute at each 

 end, serrulate, pubescent and finely reticulate beneath ; fruiting pedicels solitary, 

 as long as the petioles ; drupe large, red ; nutlets strongly 3-ribbed on the back ; 

 calyx-teeth acute. Swamps, Society Hill, South Carolina, Curtis. Leaves 

 about 2' long, 1' wide. Drupe 3" -4" in diameter. 



4 3. PKINOS. Parts of the flower mostly 6- 9 : nutlets smooth and even on theback. 

 * Leaves deciduous : drupe red. 



7. I. verticillata, Gray. Leaves (thick) oval, obovate, or wedge-lanceo- 

 late, acuminate, rather coarsely serrate, paler and pubescent beneath ; flowers all 

 clustered, 6-parted, on short pedicels ; fruit abundant. (Prinos verticillatus, L.) 

 Low ground, West Florida, and northward. April. A large shrub. Leaves 

 about 2' long. Pedicels shorter than the petioles. 



8. I. lanceolata. Leaves lanceolate, finely and remotely serrate, acute at 

 each end, smooth on both sides, membranaceous ; fertile flowers scattered gener- 

 ally in pairs, 6-parted ; sterile ones clustered, triandrous ; drupes small. (Prinos 

 lanceolatus, Pursh.) Lower districts of Georgia and South Carolina, Pursh. 

 June. (*) 



* * Leaves smooth, evergreen : drupe black. 



9. I. glabra, Gray. Leaves wedge-oblong or obovate, crenately 2-4- 

 toothed near the apex ; sterile peduncles many-flowered ; the fertile, 1 -flowered ; 

 flowers all 6-9-parted. (Prinos glaber, L.) Low pine barrens, Florida to 

 Mississippi, and northward. May. Shrub 2 - 4 high. 



10. I. coriacea. Leaves oval or oblong-obovate, entire or with sharp scat- 

 tered teeth, viscid when young; peduncles 1-flowered, the sterile ones mostly 

 clustered, the fertile solitary; flowers 6-9-parted. (Prinos coriaceus, Ell.) 

 Wet thickets, Florida, Georgia, and westward. May. Shrub 4 - 8 high. 



ORDER 79. STYRACACE^. (STORAX FAMILY.) 



Trees or shrubs. Leaves alternate, without stipules. Flowers perfect. 

 Calyx 4 - 8-toothed, or entire, free, or adherent to the 2 - 5-celled 

 ovary. Corolla hypogynous, or inserted on the calyx, 4 8-lobed or 4 8- 

 petalous. Stamens inserted on the base of the corolla, twice as many as 

 its divisions, or more numerous, separate, or monadelphous or polyadel- 

 phous at the base. Style single. Fruit capsular or drupaceous, 1 - 5- 

 celled. Seeds anatropous, mostly solitary in each cell. Embryo nearly 

 as long as the albumen. Cotyledons flat. Radicle slender. 



TRIBE I. STYRACE.?E. Calyx4- 8-toothed, or en tire : stamens 2 -4 times as many as 

 the divisions of the corolla : ovules partly erect or spreading, and partly pendulous : pu- 

 bescence stellate. 



1. STY It AX Fruit capsular, 1-celled. Ovary free from the calyx, or partly adherent. 



2 HALESIA. Fruit drupaceous, 2-4-winged, 2 -4 celled. Ovary wholly united with the 

 calyx. 



