104 NYCTAGINACE®. (FOUR-O’CLOCK FAMILY.) 
DIVISION 3. APETALA, 
Onver 48. ARISTOLOCHIACEZ. 
Twining shrubs or low herbs with perfect flowers, the conspicuous lurid calyx valvate 
in the bud and coherent with the 6-celled ovary, which forms a many-seeded 6-celled, 
pod or berry in fruit. Stamens 6-12, more or less united with the style; anthers adnate, 
extrorse. Leaves petioled, mostly heart-shaped and entire. Gray's Manual. 
1. ARISTOLOCHIA, Tourn. 
Calyx tubular, inflated above the ovary. Stamens 6, the sessile anthers adnate to the 
short stigma. 
1. A Californica, Gr. (Pipe-Vine.) A twining shrub with large cordate leaves, 
flowers curved like a Dutch pipe, greenish, marked with brown or purple. 
2. ASARUM, Tourn. 
Calyx regular, 3-cleft or parted. Stamens 12, with more or less distinct filaments; 
their tips usually continued beyond the anther into a point.—Stemless herbs with creep- 
ing rootstocks, bearing 2 or 3 scales, then one or two leaves, and terminated by a short. 
peduncled-flower close to the ground. 
1. A. caudatum, Lindl. (Wild Ginger.) The smooth broadly cordate leaves. 
usually mottled with white; calyx bell-shaped, the acuminate lobes spreading, brownish. 
purple. Common in forests; the flowers likely to be hidden under leaves. 
Orver 49. NYCTAGINACEZ:. 
Herbs with mostly opposite and entire leaves, stems swollen at the joints, the tubular 
calyx corolla-like, its persistent base contracted, inclosing the 1-celled 1-seeded ovary, 
and becoming a sort of indehiscent pod. 
1. ABRONIA, Juss. 
Calyx salverform, with obcordate lobes. Stamens 5, included, adnate to the tube. 
Style included; stigma, capitate orclavate. Fruit 5-winged. Embryo by abortion mono- 
cotyledonous, enfolding mealy albumen. Low herbs, with the opposite thick petioled: 
leaves unequal, and the flowers in involucrate heads. Common on sandy sea beaches. 
A viscid exudation causes sand to stick to every part of the plants. 
1. A. latifolia, Esch. (Yellow Sand-Verbena.) Root perennial; stems procum- 
bent; leaves very thick, sub-cordate to reniform, on thick petioles; flowers orange-yel- 
low, fragrant. 
