Calystegia. | CONVOLVULACEAE. 741 
2. CALYSTEGIA R. Br. 1 %?° 
Prostrate or twining herbs, glabrous or nearly so. Leaves alternate, 
entire or rarely palmately lobed. Peduncles axillary, 1+flowered ; bracts 2, 
large, persistent, enclosing the calyx. Flowers usually large. Sepals equal 
or the inner slightly smaller. Corolla campanulate or funnel-shaped ; limb 
plaited, 5-angled or obscurely 5-lobed. Stamens included; filaments 
dilated at the base; anthers oblong. Ovary 1-celled or imperfectly 2-celled, 
4-ovuled ; style filiform; stigmas 2, ovate or oblong, flattened. Capsule 
subglobose, usually 1-celled. Seeds glabrous. 
A small genus of 9 or 10 species, scattered through the warm and temperate regions 
of both hemispheres. Of the 4 New Zealand species 2 are found in most extra-tropica! 
countries, 1 extends to Australia, and the remaining 1 to South America and the Island 
of Masafuera. 
* Flowers large, 1-3 in. diam. 
Leaves 2-5 in., oblong-sagittate, sinus at the base narrow, deep... 1. C. sepium. 
Leaves 3-1} in., ovate-cordate or deltoid, membranous, sinus at 
the base broad, shallow .. i} * Ar - C. tugurtorum. 
Stems, short, prostrate. Leaves }—2 in. across, broader than long, 
reniform, fleshy, sinus at the base broad, shallow ; . OC. Soldanella. 
** Flowers small, 4 in. diam. 
Leaves sagittate, basal lobes narrow, acute, diverging .. .. 4 CC. marginata. 
b) 
1. C. sepium, P. Br. Prodr. (1810) 483.— Rhizome long, slender, 
extensively creeping underground. Stems slender, twining, 3-6 it. long. 
Leaves alternate, variable in size and shape, 2-5 in. long, oblong-sagittate 
or hastate, acute or acuminate, rarely obtuse, cordate at the base with 
the lobes angular or truncate or rounded, membranous, glabrous or 
rarely slightly pubescent. Peduncles solitary, 1-flowered, angled or 
margined, often exceeding the leaves; bracts large, ovate or ovate- 
lanceolate, enclosing the calyx. Sepals subequal, ovate - lanceolate. 
Corolla large, 14-3in. diam., white or pink. Ovary incompletely 
2-celled. Capsule din. diam., globose, apiculate. Seeds smooth.—dA. Cunn. 
Precur. (1838) 394; Raoul Chota (1846) 44; Hook. f. Fl. Nov. Zel. i (1853) 
183: Cheesem. Man. N.Z. Fl. (1906) 475. Convolvulus sepium Linn. Sp. 
Plant. (1753) 153; Hook. f. Handb. N.Z. Fl. (1864) 197. 
KermMapso Istanps, Norra AND Souru Istanps: Abundant in lowland situations 
as far south as Canterbury, apparently local in Otago. | Pohue; Panahe ; Bindweed. 
November—March. 
Widely dispersed in most temperate countries, and everywhere highly variable. 
i = 
| det. f. J 
2. C. tuguriorum,R. Br. ex Hook. f. Fl. Nov. Zel. i (1853) 183, t. 47.— 
Stems slender, prostrate or climbing, often clothing shrubs or trees to a 
considerable height, glabrous or puberulous. Leaves }-1}in. long, broadly 
ovate-cordate or deltoid, acute or obtusely acuminate, entire or sinuate 
or angled, sinus at the base broad and shallow, glabrous, membranous. 
Peduncles usually longer than the leaves, terete or margined; bracts 
ovate-cordate or orbicular, apiculate, equalling the calyx and enclosing it. 
Sepals subequal, broadly ovate. Corolla large, 1-2in. diam., white. 
Ovary incompletely 2-celled. Capsule 4in. long, broadly ovoid, apiculate. 
Seeds yellowish-red.—Cheesem. Man. N.Z. Fl. (1906) 476. Convolvulus 
tuguriorum Forst. f. Prodr. (1786) n. 74; Hook. f. Handb. N.Z. Fl. (1864) 
198. ©. truncatella Col. in Trans. N.Z. Insi. xxi (1889) 95. 
