558 



CONVOLVULACE^. (CONVOLVULUS FAMILY), 



Fig. 258. 



Fig. 258. (a) Flowering branch of an Ipomaea, with leaf, flower, buds, and capsule. 

 (6) Capsule, with three, 2-seeded cells, (c) The same after the valves have fallen, showing 

 one seed in its relations to the cell, (d) The embryo curved and wrinkled, (e) A cotyledon 

 in germination, with its radicle below. (/) The two cotyledons in germination, with the 

 radicle between them. 



2. I, sagittata, Desf. If Trailing and twining over grass and 

 shrubs. Lower leaves cordate-suborbicular, the others sagittate, with 

 linear-lanceolate tips and larhs ,01 to .04 long. Peduncles axillary, 

 shorter than leaves, 1-2-flowered, minutely 2-bracted near middle; sep- 

 als elliptical, obtuse, mucronulate; corolla .06 to .07 long, pinTc, 7-8- 

 times as long as calyx; stigma capitate, retuse; capsules .016 broad — 

 Autumn — Marshes of Alexandretta, and northward. 



3. I, palmata, Forsk. 5 Bint-el-Baslia. Bint-el-Busn. Sitt-el- 

 Susn. Sharq-Faleq. Kuleih Trailing or climbing to a great height 

 over trees and walls. Lobes of stipules septennate, oblong; leaves pe- 

 tioled, quinate or septennate, with elliptical, somewhat petiolulate, 

 minutely serrulate leaflets, the lateral often bifid. Peduncles 1-3- 

 flowered, longer than leaves; pedicels longer than calyx, thickened 

 above; sepals oblong, obtuse; corolla lilac-ptirple, .06 long, five to six: 

 times as long as calyx; lobes of stigma rounded; capsule ,01 broad — 

 All the year — Plain of Gennesaret ; el-Huleh ; coast. Extensively cul- 

 tivated, 



2. CAI^YSTEOIA, Pv,Br. Bracted Bindweed^ 



Calyx 5-sepaled, Corolla spreading-funnel-shaped, with repand, 

 5-plaited limb. Stigmas 2, ovate, flattish. Ovary imperfectly 2-celled, 

 cells 2-ovuled, Capsule nearly 1-celled, 2-vals^ed — Twining or trail- 

 ing herbs, with 2 bracts subtending the calyx, forming an involucre, 



* Twining herds, with cordate-oMong or sagittate-hastate leaves. 



1. C sepiiim, L. 21 Auricles of leaves entire, angled, truncate, 

 or coarse-dentate. Peduncles long, l-4-fl5wered; bracts ovate, some- 

 what cordate, onore or less tapering; sepals oblong, acute; corolla .025 

 to .04 long, white or cream-colored — Spring — Hedges; coast. 



