Vor. II.] WATER-MILFOIL FAMILY. 505 
g. Myriophyllum proserpinacoides Gill. Chilian Water-Milfoil. 
(Fig. 2625.) y 
Myriophyllum proserpinacoides Gill.; Hook. Bot. Misc. 
3: 313. 1833. 
Dioecious. Leaves all alike and submerged, glabrous, 
somewhat glaucous, pectinate-pinnatifid in crowded 
whorls of 4’s and 5’s, 7’’-10’’ long; segments capillary or 
sometimes linear-spatulate, 20-25 in number, about 
2%4’’ long, minutely cuspidate; pistillate flowers axil- 
lary, about 14’ high, without petals; stigmas 4, white, 
plumose; young carpels glabrous; small white hair-like 
bracts are borne at the bases of the leaves and among 
the flowers. 
In Hopkins’ Pond, near Haddonfield, N. J. (S. N. Rhoads, 
1890). Apparently established. Introduced first into the 
tanks for aquatic plants at Mr. E. D. Sturtevant’s nursery, 
at Bordentown, N. J. Native of Chili. Staminate flowers 
not seen, and the plant referred to this species with some 
hesitation. 
Family 90, ARALIACEAE Vent. Tabl. 3:2. 1799. 
GINSENG FAMILY. 
Herbs, shrubs or trees, with alternate or verticillate (rarely opposite) leaves, 
and perfect or polygamous flowers in umbels, heads, racemes or panicles. 
Calyx-tube adnate to the ovary, its limb truncate or toothed. Petals usually 5, 
valvate or slightly imbricate, sometimes cohering together, inserted on the mar- 
gin of the calyx. Stamens as many as the petals and alternate with them 
(rarely more), inserted on the epigynous disk; filaments filiform or short; 
anthers ovoid or oblong, introrse. Ovary inferior, 1~several-celled; styles as 
many as the cavities of the ovary; ovules 1 in each cavity, pendulous, anatropous. 
Fruit a berry or drupe. Seeds flattened, or somewhat 3-angled, the testa thin; 
endosperm copious, fleshy; embryo small, near the hilum; cotyledons ovate or 
oblong. 
About 52 genera and 450 species, widely distributed in temperate and tropical regions. 
Herbs, shrubs or trees; leaves alternate, decompound; styles 5. 1. Aralia. 
Herbs; leaves verticillate, digitately compound; styles 2-3. 2. Panax. 
1. ARALIA L, Spl 272s esse 
Perennial herbs, shrubs or trees, with alternate pinnately or ternately decompound 
leaves, and small mostly perfect flowers, in racemose corymbose or paniculate umbels. 
Flowers white or greenish. Petioles sheathing at the base. Stipules none or inconspicuous. 
Pedicels jointed below the flowers. Calyx truncate or 5-toothed. Petals 5, spreading, 
obtuse, or with short inflexed points, valvate or slightly imbricate. Stamens 5. Disk de- 
pressed. Ovary 5-celled; styles 5. Fruit asmall berry enclosing about 5 seeds. 
About 27 species, natives of North America and Asia. Besides the following, 2 others occur in 
the western and southwestern United States. 
Umbels numerous, panicled or racemose. 
Spiny shrub or tree; leaflets thick, ovate. 1. A. spinosa. 
Branching unarmed herb; leaflets thin, large, cordate. 2. A, racemosa. 
Umbels 2-7, terminal or corymbose. 
Plant glabrate; leaf and peduncle arising from the rootstock. 3. A. nudicaulis, 
Plant bristly or hispid; stem leafy, erect. 4. A, hispida. 
