Empetrum. CXXII. EMPETRACEiE. 489 



spikelets ; sty. 6, twice bifid ; staminate Jls. capitate, crowded. — (J) Grows in 

 sandy prairies, 111. to the sources of the Missouri. 



2. C. ELLiPTicuM. Nutt. (Crotonopsis elliptica. Willd.) 



Plant clothed with a stellate pubescence ; Ivs. elliptical-ovate, the older 

 ones obtuse at apex, smoothish and green on the upper surface ; Jls. glomerate ; 

 sty. 3, bifid ; caps, angular, 2-seeded. — ® 111. Mead, and Mo. 



3. C. GLANDULOSUM. 



St. trichotomous ; Ivs. oblong, serrate, hairy beneath, nearly entire, and 

 bearing 2 glands at the base ; spikes of flowers situated in the division of the 

 stem. — ® 111. {Mead), river bottoms. 



6. PHYLLANTHUS. 



Gr. (bvXXov, av^os; the leaves of the original speciea bear flowers at the edges. 



Flowers c? . — J* Calyx persistent, with 6 spreading, colored seg- 

 ments ; stamens 3, very short, filaments united at base, anthers didy- 

 mous. 9 Calyx as in the cj* ; styles 3, bifid ; capsule 3-celled ; 

 cells 2-valved, 1 — 2-seeded. — Herbs or shrubs with alternate., stipulate 

 leaves and minute., axillary flowers. 



P. Carolinensis. Walt. (P. obovatus. Willd.) 



St. erect, herbaceous, with alternate branches; Ivs. simple, entire, gla- 

 brous, oval and obovate, obtuse, slightly petioled -jfls. few, subsolitary, axillary. 

 — ® A small-leaved, delicate plant, Penn. ! to 111. ! Stem 6 — 10' high, slender, 

 the branches filiform. Leaves of the stem 6 — 8" by 4 — 5", of the branches 

 twice, and of the branchlets four times smaller. Flowers 1 — 3 in each axil, 

 the (^with the 9, |— 1" diam., whiti-sh. July, Aug. 



7. BUXUS. 



The Greek name of this plant was ^m|oj. 



Flowers c?. — c?* Calyx 3-leaved ; petals 2 ; sta. 4, with the rudiment 

 of an ovary. 9 Cal. 4-sepaled ; pet. 3 ; sty. 3 ; caps, with 3 beaks 

 and 3 cells ; seeds 2. — Shrubs. Lvs. evergreen., opposite. 



B, sEMPERviRENs. Box. — Lvs. ovSite ', pctiolcs hairy at edge; a7itk. ovate, 

 saggittate. — Var. angustifdia has narrow, lanceolate leaves. Var. suffruticosa, 

 me dwarf box has obovate leaves and a stem scarcely woody, highly esteemed 

 for edgings in gardens. — The box with its varieties is native of Europe. 



Order CXXII. EMPETRACE^.— Crowberries. 



Shrubs small, evergreen, heath-like, with exstipulate leaves and minute, axillary flowers. 

 Fls. dioecious. Cal. consisting of hyposynous. imbricated scales. 

 Sta. equal in number to the inner sepals and alternate with them. 

 Ova. 3— 9-celled, with a single erect ovule m each cell. 

 Styles short or o. Stis^7nas lobed and often lacerated. • 

 fV.— Drupe seated in the persi.slent calyx, containing 3—9 bony nucules. 



Sds. solitary, ascending, albuminous. Radicle inferior. ,,„,.. ^ ,;r n rr.u ■ . 



Genera 4. species i. natives of Europe, North America and the Straits of Magellan. They aie acnd. 

 The berries are used for food in Greenland. 



Genera. 



?6-9-seeded. Empetrutn. 1 

 Drupe ( 3-seeded. OaJcesia. 2 



1. EMPETRUM. 



G>'. tv, upon, TTCTpos, a stone; fiom the places of its natural growth. 



Flowers 9 c?. Perianth consisting of 2 series of sepaloid scales. 



(^ Stamens 3, anthers pendulous on long filaments. 9. Styles 6—9, 



very short, erect, or ; stigmas oblong, radiate-spreading ; drupe 



globose, 1 -celled ; "seeds 6 — 9. — Loio, alpine shrubs. 



E. NIGRUM. Crowlicrnj. 



Procumbent; branches smooth; lvs. imbricated, linear-oblong, obtuse at 



