” 
LXXXII. PRIMULACEA. 383 
tree at the North, a tree of large dimensions at the South. . Leaves 3—5’ long, 
entire, glaucous beneath. Flowers obscure, pale greenish-yellow, the fertile 
ones succeeded by a round, orange-red fruit as large as the garden plum, and 
containing 6—8 stony seeds. They are rendered sweet and palatable by the 
frost, although very austere when green. The bark is tonic and astringent. Jn. 
Orprer LXXXI. STYRACACE. 
Trees or shrubs with alternate, simple leaves destitute of stipules. 
Fis. or racemes solitary, axillary, bracteate. 
Cal. 5, rarely 4-lobed, imbricated in estivation. . 
Cor. 5, rarely 4 or 6-lobed, imbricated in westivation. f 
Sta. definite or 00, unequal in length, usually cohering. Anth. innate, 2-celled. 
Ova. adherent, 2-'5-celled, the partitions sometimes hardly reaching the centre. 
Fy. drupaceous, generally with but one fertile cell. Sds. 5—1. 
Genera 6, species 115, sparingly distributed through the tropical and subtropical regions of both conti- 
nents, only a few in colder latitudes. Storax and benzown, two fragrant gum resins, regarded as stimu- 
lant and expectorant, are the products of two species of Styrax, viz. of S. officinale, a Syrian tree, and 8S. 
benzoin, native of Malay and the adjacent Islands. 
HALESIA. Ellis. 
In honor of the learned and venerable Stephen Hales, D.D., F.R.S., 1730. 
Calyx obconic, briefly 4-lobed ; cor. inserted into the calyx, cam- 
panulate, with a narrow base, 4-cleft or 4-parted ; sta. 8—12, connate 
into a tube below ; sty. filiform, pubescent ; fruit dry, 4-winged, wings 
equal or alternately smaller ; seeds 1—3.—NV. American shrubs. 
1. H. terrapTera. Four-winged Snowdrop Tree. 
Lws. elliptic-acuminate, serrulate; fascicles 3-flowered, lateral, leafless, 
from the wood of the preceding year; cal. subentire; sta. 12; fr. with 4 equal 
wings.—Native of S. Car. to Flor., Miss E. Carpenter! Branches leafy at the 
summit. Leaves thin, 2—5’ by 14—2', obtuse or acute at base. Flowers pen- 
dulous, white, about 10” long. + 
2. H. piprErA. Two-winged Snowdrop Tree. 
Lvs. oblong-ovate, obtuse, acuminate at each 
end, serrulate, softly pubescent beneath; fascicles 
2—3-flowered, lateral; pedicels and cal. pubescent; 
sta. 8; fr. with the alternate wings half as large 
or obsolete—Native in Car. and Ga. Leaves 
somewhat larger than in the last, with rather 
smaller flowers. Corolla white. + 
Orpen LXXXIL PRIMULACER— 
PrRiMwortTs. 
Plants herhaceous, annual or perennial, sometimes suffruticose. 
Lvs. usually radical, otherwise mostly opposite. Stipules 0. 
—\ 
° 
Fis. on scapes and in umbels ious! i ils of las Y 
ig ey umbels or variously arranged in the axils of < ( \ GO / 
ae ad 
Cal. 5 (rarely 4)-cleft, inferior, regular, persistent. 
Cor. 5 (rarely 4)-cleft, regular. 
Sta. inserted on the tube of the corolla, as many as its lobes and 
opposite to them. 
Ova. oe with a free, central placenta. Style and Stigma 
simple. 
Fr.—Capsule many-seeded, the fleshy placenta attached only to 
the base of the cell. 
Genera 29, species 215, common in the northern temperate 
regions, growing in swamps, groves, by rivulets and often amon 
the snow of cloud-capped mountains. Many are beautiful, aid 
highly prized in culture. Properties unimportant. 
FIG, 49.—1. Primula Mistassinica. 2. A flower laid open, show- 
ing the 5 stamens inserted on the tube of the corolla. 4. Plan of 
the flower. 6. Ovary and calyx. 5. Vertical section of the ovary, 
showing the free central placenta. 
33 
