THE TASMANIAN FLORA. 65 



lateral ribs bordering the broad commisBure in the centre of the convex inner 

 face, the intermediate ribs forming the edges of the carpels. 



The genus consists of the following that are confined to Australian distribu- 

 tion. Referred by Mueller to Huanaca, 



Leaves quite entire, glabrous ... ... ... ... 1. D. hydrocotylea. 



Leaves crenate on margin, hairy ... ... ... 2. D. cordifolia. 



1. D. HYDEOCOTTLBA, Hook. A glabrous perennial, with a creeping rhizome. 

 Leaves in tufts, on long stalks, orbicular to ovate, thick, with revolute margin, 

 mostly j-^ inch diameter. Flower-stem ^-1 inch long, bearing a single terminal 

 umbel of 12-20 shortly-stalked flowers, surrounded by an involucre of few 

 unequal, linear bracts. 



Marshes and wet sandy ground, about alpine lakes ; also in Victoria. Fl. 

 Dec-Jan. 



2. D. CORDIFOLIA, Hook. Yerj near D. hydrocotyUa, but rather larger, more 

 or less hirsute, with spreading hairs, the revolute margins of the leaves distinctly 

 ■crenate ; the flowers more numerous, and fruits narrower on a longer stalk. 



Marshy places at Mount Sorell, Mount La Perouse, Macquarie Harbour, &c. 

 Fl. Dec-Jan. 



6. ACTIISrOTUS. 



Calyx-limb distinct, and usually 5-lobed, in one Tasmanian form absent. 

 Petals when present 5. Ovary with a single cell and ovule. Styles 2. Fruit 

 •obliquely ovate. 



A genus of very few species, confined to Australia and New Zealand. Peculiar 

 for the obliteration of the ovarian portion of one carpel. 



Leaves exceeding J inch. Calyx 5-lobed ... ... 1. A. hellidioides. 



Leaves under J inch. Calyx-lobes absent ... ... 2. A. suffocata. 



Leaves divided or deeply obed ... ... ... 3. A. moorei. 



1. A. BBLLiDioiDES, Benth. A small, densely-tufted perennial. Leaves 

 radical, from broadly to narrowly ovate, usually coarsely crenate on the margin, 

 about 4-6 lines long, on a stalk of about the same length, more or less covered 

 with soft hairs. Flowering stem about 1 inch high, bearing a small dense 

 umbel. Involucre of about 6-10 narrow ovate bracts, united towards their 

 base. Flowers usually 6-10. Calyx -lobes 5, conspicuous, like the rest of the 

 •calyx somewhat hirsute. Petals none. Fruit about 1 line long. Hemiphues 

 ■bellidioides. Hook. 



Lake St. Clair, Lake Fenton, Mount Fatigue, Mount Dundas, &c. Fl. 

 Dec -Jan. 



Among the varieties. Hooker describes one form, var. fulva, bearing small 

 linear petals ; but there is some doubt of the correctness of the obser- 

 vation. 



2. A. SUFFOCATA, Sod. A smaller plant than the preceding, and of similar 

 habit. Leaves ovate, entire, smooth, about 1 line long, on a hairy stalk rather 

 longer. Flower-stalk about |-f inch. Umbel about one-third as large, but other- 

 wise similar to the last. Flowers without any calyx-limb, and only 2 stamens. 

 Fruit about J line long. A. hellidioides, var. suffocata, Hook. ; A. novce-zelandiee, 

 Petrie. 



On mountains, South-West and West Coasts ; also in New Zealand. Fl. 

 Dec-Jan. 



3. A. MOOEBi, Mod. A small tufted and creeping perennial, usually with pro- 

 cumbent leafless branches extending to 2-6 inches, the leafy ends ascending. 

 Leaves alternate, 3-segmented, the lateral segments usually 2-cleft, about 2 lines 

 long, segments lanceolate-ovate ; stalk slender, about 4 lines long, with a short 



