Page:Manual of the New Zealand Flora.djvu/517

Calystegia.] 4. C. marginata, R. Br. Prodr. 484.—Rhizome creeping; stems slender, twining, quite glabrous, 2–5 ft. long. Leaves on petioles 1–2 in. long; blade 1–3 in., sagittate, acute or acuminate, membranous; the basal lobes long, acute, diverging, often toothed or lobed. Peduncles usually shorter than the petioles, margined; bracts rounded-ovate, longer than the calyx. Sepals subequal, broadly ovate, obtuse. Corolla small, ½ in. diam., white. Ovary imperfectly 2-celled. Capsule globose; seeds usually 4.—''Hook. f. Fl. Nov. Zel.'' i. 184, t. 48. Convolvulus marginatus. ''Spreng. Syst. i. 603; Hook. f. Handb. N.Z. Fl. 198; Benth. Fl. Austral.'' iv. 430.

Herbs or undershrubs, erect or prostrate or climbing. Leaves entire or toothed or lobed. Peduncles axillary, 1- or many-flowered; bracts usually narrow or small. Sepals subequal or the inner narrower. Corolla campanulate; limb plaited, 5-angled or obscurely o-lobed. Stamens included; filaments filiform, dilated at the base; anthers oblong. Ovary 2-celled, 4-ovuled; style filiform; stigmas 2, distinct, oblong or linear. Capsule globose, 2-celled, 4-valved or splitting irregularly. Seeds glabrous.

1. C. erubescens, ''Sims in Bot. Mag.'' t. 1067.—Perennial; usually more or less silky-pubescent, rarely almost glabrous. Root-stock stout, creeping; stems few or many, slender, prostrate and trailing, variable in length, 2–12 in. long or more. Leaves petiolate, very variable in size and shape; the lower ones with a blade ¼–¾ in. long, oblong-cordate or hastate, obtuse, quite entire or sinuate; in large specimens gradually passing into much narrower acute or acummate upper ones, with diverging entire or irregularly toothed basal auricles; in small specimens the narrow cauline leaves are often wanting. Peduncles as long as the leaves or nearly so, 1-flowered, with 2 subulate bracts some distance oelow the calyx. Sepals broadly oblong, obtuse, silky. Corolla variable in size, ⅓–¾ in. diam., white. Capsule ¼–⅓ in. diam., globose, 2-celled. Seeds 4, rough, brownish-black.—''Hook. f. Fl. Nov. Zel. i. 185; Handb. N.Z. Fl. 198; Benth. Fl. Austral.'' iv. 429.

Hawke's Bay—Patangata, H. Tryon! Wellington— Palliser Bay, Colenso, Buchanan. Marlborough—Waihopai River, Munro; Kaikoura Mountains, Buchanan! Canterbury—Port Cooper, Lyall;