EMPETRUM. CXXIl. EMPETRACE. 489 
spikelets ; sty. 6, twice bifid; staminate fis. capitate, crowded—@Q) Grows in 
sandy prairies, Ill. to the sources of the Missouri. 
2. C. ExtiptTicum. Nutt. (Crotonopsis elliptica. Willd.) 
Plant clothed with a stellate pubescence; lvs. elliptical-ovate, the older 
~ ones obtuse at apex, smoothish and green on the upper surface; fis. glomerate; 
sty. 3, bifid; caps. angular, 2-seeded.—@ Ill. Mead, and Mo. ‘ 
3. C. GLANDULOSUM. 
St. trichotomous; lvs. oblong, serrate, hairy beneath, nearly entire, and 
bearing 2 glands at the base; spikes of flowers situated in the division of the 
stem.—{ Ill. (Mead), river bottoms. 
6. PHYLLANTHUS. 
Gr. gvd ov, avSog ; the leaves of the original species bear flowers at the edges. 
Flowers $.—c Calyx persistent, with 6 spreading, colored seg- 
ments ; stamens 3, very short, filaments united at base, anthers didy- 
mous. 9 Calyx as in the o; styles 3, bifid; capsule 3-celled; 
cells 2-valved, 1—2-seeded.— Herbs or shrubs with alternate, stipulate 
leaves und minute, axillary flowers. 
P. Caroxinensis. Walt. (P. obovatus. Willd.) 
St. erect, herbaceous, with alternate branches; lvs. simple, entire, gla- 
brous, oval and obovate, obtuse, slightly petioled ; fis. few, subsolitary, axillary. 
—@ A small-leaved, delicate plant, Penn.! to Ill.!| 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, 4—1” diam., whitish. July, Aug. 
7. BUXUS. 
The Greek name of this plant was ¢véos. 
Flowers §.—d Calyx 3-leaved ; petals 2; sta. 4, with the rudiment 
of an ovary. @ Cal. 4-sepaled; pet. 3; sty. 3; caps. with 3 beaks 
and 3 cells; seeds 2—Shrubs. Lws. evergreen, opposite. 
B. sEMPERVIRENS. Box.—Lws. ovate; petioles hairy at edge; anth. ovate, 
saggittate.—Var. angustifolia has narrow, lanceolate leaves. Var. suffruticosa, 
the 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. 
Orver CXXII. EMPETRACE ®.—Crowserrtts. 
Shrubs small, evergreen, heath-like, with exstipulate leaves and minute, axillary flowers. 
Fis. diecious. Cal. consisting of hypogynous, imbricated scales. 
Sta. equal in number to the inner sepals and alternate with them. 
Ova. 3—9-celled, with a single erect ovule in each cell. 
Styles short or 0. Stigmas lobed and often lacerated. 
Fr.—Drupe seated in the persistent calyx, containing 3—9 bony nucules. 
Sds. solitary, ascending, albuminous. Radicle inferior. : ; 
Genera 4, species 4, natives of Europe, North America and the Straits of Magellan. They are acrid, 
The berries are used for food in Greenland. 
Genera. 
a Empetrum. 1 
Drupe ?3-seeded. Oakesia. 2 
1 EMPETRUM. 
Gr. év, upon, 7ETe0S, a stone; from the places of its natural growth. 
Flowers 2 &. Perianth consisting of 2 series of sepaloid scales. 
& Stamens 3, anthers pendulous on long filaments. 2 Styles 6—9, 
very short, erect, or 0; stigmas oblong, radiate-spreading; drupe 
globose, l-celled ; seeds 6—9.—Low, alpine shrubs. 
E. nigrum. Crowberry. 
Procumbent; dranches smooth; lvs. imbricated, linear-oblong, obtuse at 
