THE TASMANIAN FLORA. 135 



Plant prostrate or sub-erect. Flowers witli cylindrical 

 corolla- tube and spreading lobes. Leaves ovate to 

 linear ... ... ... ... ... ... ... 2. Wilsonia. 



Plant creeping, tufted at nodes. Flowers campanulate. 



Leaves reniform ... ... ... ... ... 3. Dichondra. 



Leafless parasite. Flowers campanulate ... ... 4. Cuscuta. 



1. CONVOLVULUS 



Corolla funnel-shaped, tho apex of each petal prominent, otherwise margin 

 entire. Ovary 2-celled, with 2 ovules in each. Style filiform, with 2 linear or 

 ovate stigmatic lobes. Fruit a dry capsule. 



A widely distributed genus, principally in temperate regions of both 

 Hemispheres. 



Bracts small, at a distance from calyx. 



Flowers pink. Leaves deeply divided ... ... 1. C. erubescens. 



Flowers white or nearly so. Leaves angled ... 2. C. arvensi.i. 

 Bracts large, and enclosing the calyx. 



Leaves roughly triangular . . ... ... ... 3. (7. sepium. 



Leaves reniform, fleshy ... ... ... ... 4. C. soldanella. 



1. C. EBUBESCENS, Sims. A small creeping or trailing perennial, seldom 

 exceeding 1 or 1^ foot, usually more or less hirsute. Leaves very variable, 

 lowest often ovate, passing from that as they advance along the branch to 

 sagittate, pedate, linear with basal lobes to simple linear, often all simpler, 

 mostly f-lf inch long, on stalks as long as the laminae. Flowers solitary, 

 axillary, on stalks exceeding the leaves, and bearing two small linear bracts 

 about the middle. Hepals about 3 lines long, ovate. Corolla pink or rarely 

 white, about f inch long. 



Very common ; also throughout Australia. Fl. spring and summer. 



2. 0. ABVENSis, iiww. A perennial with a creeping rhizome, branches slender, 

 trailing or climbing, from a few inches to 2 or 3 feet high, usually glabrous. 

 Leaves more or less sagittate, the apex often rounded, 1-2 inches long, on stalks 

 about same length. Flowers usually 2 together, on a common, slender, axillary 

 peduncle. Bracts small, never approaching the calyx. Sepals about 2 lines 

 long, ovate. Corolla white or pale pink, |-1 inch long. 



Introduced. Very common in Europe and Northern Asia. Widely spread as 

 a weed of cultivation. Fl. spring and summer. 



3. C. SEPIUM, Jjinn. Habit similar to the last, but a more vigorous climber, 

 often attaining many feet. Leaves more or less triangular to sagittate, 2-4 inches 

 long, stalked. Flowers solitary, axillary, on long slender stalks. Bracts large, 

 ovate, close to and enclosing the calyx. Sepals lanceolate, 4-5 lines long. 

 Corolla white or pale pink, 2-4 inches long. Stigmatic lobes oblong. Dissepiment 

 of capsule deficient, leaving it 1-celled. Calystegia sepium, Hook. 



Not uncommon in many parts. It occurs throughout extra-tropical Australia 

 and New Zealand, and has a very wide distribution in the Northern 

 Hemisphere 



This and the next, with about 10 or 12 other forms, are often treated as a 

 distinct genus (Calystegia), on the strength of their more or less 

 unilocular capsules, and the bracts being adjacent to and enclosing the 

 calyx. 



4. C. SOLDANELLA, Linn. Habit similar to the last, but the stems much 

 shorter, trailing or climbing. Leaves fleshy, more or less reniform, with a 

 tendency to become sagittate, mostly about 1 inch long, stalk exceeding the 

 lamina. Flowers stalked, solitary, axillary. Bracts ovate, obtuse, close to and 



