19S 
LI. CONYOLVTJLACEiE. 
[ Convolvulus . 
2. C. Tuguriorum, Forst. ; — Calystegia Tuguriorum, Br. ; FI. N. Z. i. 
183. t. 47. Stem slender, prostrate, rarely climbing, 12-24 in. long, and 
leaves glabrous. Leaves 1|- in. long, broadly ovate-cordate or deltoid, 
acute or obtuse, entire lobed sinuate or angled, sinus at the base broad. Pe- 
duncles longer than the petioles, terete or margined. Bracts as long as the 
calyx and enclosing it, orbicular or cordate. Corolla 1-2 in. across, white or 
rose-coloured. Capsule ovate, acute, \ in. long. Seeds yellow, small. 
Abundant throughout the islands, Banks and Solander, etc. A much smaller plant than 
the preceding, but large specimens are often difficult to distinguish. The same plant is found 
in Valdivia and Chiloe. 
3. C. Soldanella, Linn. ; — Calystegia Soldanella, Br. ; PI. N. Z. i. 183. 
Stems prostrate, glabrous or pubendous, 1 ft. long, stouter than in the pre- 
ceding. Leaves broader than long, |-1^ in. diam., reniform or cordate-reni- 
form, acute or obtuse and apiculate, sometimes rather fleshy, sinus at the base 
broad and open, entire or rarely lobed. Peduncles terete, longer than the 
leaves. Bracts enclosing the calyx, broadly orbicular or cordate, obtuse or 
apiculate. Corolla rose-red, 1-2 in. broad. Capsule large, globose. Seeds 
large, black. 
Northern Island: shores near Auckland, Sinclair. Middle Island: Canterbury, 
Haast ; Bluff Island, Lyall. The southern specimens are identical with the European and 
Australian ; the Auckland ones approach C. Tuguriorum in foliage, and in the absence of 
fruit may be referable to' a state of that plaut. This species is found in many temperate 
and tropical shores. 
4. C. marginata. Hook. f. — Calystegia marginata, Br. ; PI. N. Z. i. 184. 
t. 48. Stems slender, climbing, quite glabrous. Leaves 1-2 in. long, broadly 
sagittate, acuminate, the basal lobes long, diverging, obtuse or acute, entire 
lobed or 2-fid. Peduncle shorter than the petiole, with two often crisped 
wings. Plowers small. Bracts cordate-ovate, obtuse, half as long as the co- 
rolla. Corolla white, \ in. diam. 
Northern Island : Wangarui and Owai, on the east coast, Colenso ; Bay of Islands P, 
Sinclair. Als.0 a native of eastern Australia. 
5. C. erubescens, Br. ; — FI. N. Z. i. 185. Stems prostrate, 4-12 in. 
long, rarely twining, and leaves glabrous pubescent or silky. Leaves very 
variable, -i— ^ in. long, oblong hastate or cordate, obtuse, quite entire or sinuate. 
Peduncles longer than the petioles, with two small subulate bracts above the 
middle. Sepals broadly oblong, rounded at the tip, coriaceous, silky. Co- 
rolla white or rose-coloured, -|— | in. diam. Capsule globose. Seeds rugose. 
Northern Island : south-west head of Palliser Bay, Colenso. Middle Island : banks of 
the Waihopai, Munro ; Port Cooper, Lyall, Bolton ; Otago, Lower Waitaki river, Hector 
and Buchanan. The flowers appear to be most frequently white in New Zealand. A very 
common Australian plant, closely allied to the European C. arvensis, and some others of very 
wide distribution. 
2. IPOMGSA, Linn. 
Climbing herbs (rarely erect), with milky juice, resembling Convolvulus , 
except that the stigma is capitate, 2- or 3-lobed, and the capsule 2- or 3-celled. 
A very large tropical and subtropical genus, to which the Sweet-Potato, or Kumerabo, of 
