210 ORDER 81. PRIMULACE^E. 



ORDER LXXVIII. SAPOTACEJE. SOAPWORTS. 



Trees or shrubs, mostly with a milky juice, and simple, entire leaves. 

 Flowers small, regular, perfect, mostly in axillary clusters. Calyx free, per- 

 sistent. Corolla hypogynous, short, stamens usually as many as its lobe? 

 and opposite to them, inserted into its tube along with one or more rows 

 or appendages. Anthers cxtrorse. Ovary 4-12-celled, with a single ana- 

 tropous ovule in each cell. Seeds large. (Included Theophrastacese.) 



Corolla 6-8-cleft, with a pair of appendages at each sinus. S. Fla MIMUSOPS SMieri DC. 



Corolla 5-cleft, with a single appendage at each sinus. S. Fla SIDEROXYLON pnllidum Jq. 



, with a pair of, &e. b Sterile stamens fringed. S. Fla. . .DIPHOLIS mUcifolia A. DC. 

 b Sterile stamens entire BUMELIA. J 



BUMELIA, Swartz. Cal. 5-parted. Cor. 5-cleft, with a pair of ap- 

 pendages between the lobes. Sta. 5, opposite the lobes, alternate with 5 

 petaloid, sterile stamens. Ov. 5-celled. Sty. filiform. Drupe ellipsoid, 1- 

 seeded, cxalbuminous. J> 5 Wood hard and firm. Lvs. entire, of a firm 

 texture. Fls. aggregated, white or greenish. Our species are all more or 

 less spiny, and with very tough twigs. 



* Leaves hairy beneath Nos. 1, 2. ** Leaves glabrous both sides. . ..Nos. 3, 4 



1 B. toiiax Willd. Silky-ferruginous ; Ivs. wedge-oblong to obovate, obtuse ; clusters 



20-35-flwd., with slender pedicels; drupe oval, corrugated. Sands, S. 20 30f. Jn., Jl. 



2 B. lanngiiiosa Peru. Woolly-ferruginous; Ivs. oval, acutish, thin; fascicles 6-12- 



flwd., with short pedicels ; drupe globular. Damp. S. 111., and S. 8 12f. June, Jl. 



3 B. lycloides Gaert. Lvs. wedge-elliptical, rather acute; clusters densely 20-30-flwd., 



ped. shorter than petioles (2-3"). Damp, Ky., and S. 15-25f. Branches virgate. May. 



4 B. recliiiata Vent. Lvs. obovate, obtuse, small (9 12") ; clusters 15-20-fi wd. ; ped. 



slender, half as long as the leaf. River banks, S. Car. to Fla. A straggling shrub. Jn.,Jl. 



ORDER LXXXI. PRIMULACE.E. PRIMWORTS. 



Herbs low, with the leaves mostly radical or mostly opposite. Flowers 

 5- (rarely 4-6-) parted, regular and monopetalous. Stamens 5, inserted on 

 the corolla tube and opposite to its lobes. Ovary 1 -celled, with a free cen- 

 tral placenta. Style 1. Stigma 1. Capsule 1 -celled, oo-seeded. Seeds with 

 fleshy albumen. Figs. 22, 133, 249. 



g Ovary half-inferior. Capsule opening by valves. Leaves undivided. (Tribe IV.) 

 g Ovary superior.* Capsule opening by valves. Leaves pectinate. (Tribe L> 

 * Capsule opening by valves. Leaves undivided. (Tribe II.) 

 * Capsule opening by a lid. Leaves undivided. (Tribe III.) 



I. HOTTONIEyE. Corolla salver-form. 1'lants floating. Leaves verticillate ... HOTTOXI \. 

 1L I'KlMi:LK.K.-<( Acaulesceiit. 1> Corolla limb spreading, tube cylindrical. ... I'KIMUI.A. 



// Corolla limb spreading, tube ovoid AXDUOSACK. 



li Corolla lobes rellexed. Stain, exserted. . .DODKCATIIKO: 

 < Stain, included. . .CYCI.AMK.N. 



Cai.lescent. // Corolla wanting. Leaves opposite CLAUX. (; 



</ Corolla 7-partert. I^eaves in one whorl TIUKNTAUS. I 



(I Cor. 5- or C-parted. Lvs. opp. or whorled LVSIMACHIA. 8 



III. ANAGALLIDE.E. e Flowers 5-parted, .scarlet. Leaves opposite AXAGAU.W. < 



t Flowers 4-parted, white * Leaves scattered CKXTU.NCCI.US. 10 



TV. SAMOI.E.E. Flowers 5-:>arteil. Leaves alternate SAMOI.IIS. Jl 



