270 STYR.VCACK.E. (.STORAX FAMILY.) 



tuso, filiate. (I. montieola, 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 huge, 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. 



$ 3. PfclNOS. — Parts of the flower mostly 6 - 9 : nutlets smooth and even on the back. 

 * Leaves deciduous : drupe red. 



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

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

 clustered, G-parted, on short pedicels; fruit abundant. (Prinos* vcrticillatus, 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 sen-ate, 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.) 



Tree- or shrubs. Leaves alternate, without stipules. Flowers perfect. 

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

 ovary. Corolla h\ pogynpUS, 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. 



Trihe I. STYRAfEH. Calyx 4-R -toothed, or entire : stamens 2 4 times as many as 

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

 bescence stellate. 



1. STYICAX Fruit capsular, 1-celled. Ovary free from the calyx, or partly adherent. 



2 HALKSIA. Fri.it drupaceous, 2-4-winged, 2-4cellcd. Ovary wholly united with the 

 calyx. 



