958 CONVOLVULACEAE 
2-3 mm. long, obtuse : corolla greenish white, 5-6 mm. broad : capsules 2-2.5 mm. high, 
utricle-like. 
In low grounds, Virginia to Florida and Texas. Also widely distributed in tropical America and 
the Old World. Spring to fall. 
FAMILY 2, CONVOLVULACEAE Vent. MonNING-GLORY FAMILY. 
Annual or perennial herbs or vines, or rarely shrubs or trees. Leaves al- 
ternate, without stipules: blades various. Flowers perfect, regular, sometimes 
solitary, often in cymes. Calyx of 5 more or less united sepals; these imbri- 
cated, persistent, equal or unequal, in one or two series. Corolla superior, con- 
volute in aestivation, its limb often entire, after flowering often involute. An- 
droecium of 5 stamens partially adnate to the corolla-tube, alternate with the 
lobes. Filaments often of the same length, commonly enlarged at the base and 
pubescent. Anthers 2-celled, erect or incumbent. Gynoecium free, of 2 united 
earpels. Ovary 2-5-celled, seated ina fleshy disk. Styles often united. Stigma 
simple, acute or capitate, sometimes 2-lobed. Ovules erect, solitary or two in 
each cavity. Fruit a 2-4-celled or 5-celled capsule (or by breaking down of the 
septum 1-celled). Seeds large, usually fewer than the ovules, with a mem- 
branous or coriaceous testa, often villous. Endosperm mucilaginous. Embryo 
curved, with foliaceous usually crumpled or plaited cotyledons. 
Styles distinct or partly so. 
Styles nearly distinet or partially united, entire. 
Corolla plaited : stamens included : vines. 1. BREWERIA. 
Corolla not plaited : stamens exserted : erect herbs. 2. CRESSA. 
Styles distinet, each 2-cleft. 3. EVOLVULUS. 
Styles united to the stigma. 
Stigmas ovoid or subglobose. 
Corolla salverform : stamens and style exserted. 
Corolla-tube slender-cylindric: limb very broad. 4. CALONYCTION. 
Corolla-tube narrowly funnelform: limb narrow. 5. QUAMOCLIT. 
Corolla funnelform or campanulate : stamens and style included. 
Stigma subglobose. 
Sepals blunt to acuminate: ovary 2 or 4-celled : capsule 4-seeded. 6. IPOMOEA. 
„Sepals with long tips: ovary 3 or 5-celled : capsules 6 or 10-seeded. 7. PHARBITIS. 
. Stigmas somewhat flattened. 8. JACQUEMONTIA. 
Stigmas filiform or oblong-cylindric. 9. CONVOLVULUS. 
1. BREWERIA R. Br. 
Perennial herbs, with prostrate or twining stems. Leaves alternate: blades very nar- 
row or broad, entire. Flowers 1-5, terminating axillary peduncles. Calyx often pubescent: 
sepals 5, slightly united at the base. Corolla white, pink, purple or yellow, campanulate 
or funnelform-campanulate: limb plaited, 5-angled or slightly 5-lobed. Stamens 5, m- 
cluded : filaments filiform or dilated at the base. Ovary 2-celled. Styles wholly or par- 
tially united. Stigmas capitate. Capsule 2-celled, seated in the calyx, 2-4-valved. Seeds 
1-4, sometimes pubescent. The plants flower from spring to fall. 
Sepals fully 2 em. long: capsules over 10 mm. long. 1. B. grandifiora. 
Sepals less than 1 em. long: capsules less than 10 mm. long. 
ERTH es ain or — so, sometimes ciliate. ` 9. B. angustifolia. 
- es narrowly linear. SP. ; 
Leaí-blades oblong. d 3. B. humistrata. 
Sepals densely pubescent. 
ba ren pubescent. 1 ias 
E : E i : coro A 
Fo ago eri bia : mature peduncles 1-3 em. long: c 4. B. trichosanthes. 
Foliage densely brown-tomentose : mature peduncles 4-6 em. iong : corollas s 
: about 2 cm. long. di Aer sers 
Filaments glabrous or nearly so. 
Leaf-blades oblong to narrowly lanceolate. 5 6. B. 
Leaf-blades narrowly linear, or slightly broadest above the middle. 7. 
l. Breweria grandifldra A. Gray. Foliage softly pubescent. Stems trailing, s 
im. long, simple or branching : leaf-blades leathery, oblong, ovate or oval, 2.9-5 cm. dice E 
usually apiculate, entire, rounded or cordate at the base ; petioles 1-5 mm. long: A or 
about as long as the peduncles: bracts linear or oblong: sepals lanceolate, o E d: 
ovate-lanceolate, acute, 2-2.5 em. long: corolla light blue, 6-7 cm. long, 7-10 em. broad : 
capsules ovoid or globose-ovoid, 1.2-1.5 cm. long, 4-seeded. 
In sandy soil, peninsular Florida. 
aquatica. |. 
B. Pickeringu. 
