62 



THE TASMANIAN FLOKA. 



In Actinotus one carpel is abortive ; tke mature pistil becomes unilocular 



and 1-seeded. 

 i. Leaves entire or not deeply lobed ... 



Leaves deeply lobed or divided 

 ii. Leaves broad. Flowers in dense umbels ... 



Leaves filiform, cylindric 

 iii. Carpels flattened in the same plane 



Carpels flattened parallel to one another ... 

 Carpels single. Petals absent 

 iv. Umbels simple 



Umbels compound ... 

 Umbels few-flowered, irregular 

 V. Plant very spiney ... ... ... ... 



Carpel solitary. Petals absent 

 Leaves very small, palmate... 

 Leaves large, palmate 

 Leaves pinnate, dissected 

 vi. Bracts linear ... 

 Bracts absent ... 

 vii. Umbels axillary 



Umbels terminal. Fruit smooth ... 

 Umbels terminal. Fruit clothed with hooked 

 hairs 



1. HYDROCOTTLE. 



Fruit laterally compressed, dorsal rib prominent, lateral ones faint, about as 

 l)road as long. Calyx obsolete. Umbels simple, rather dense, axillary, stalked. 

 Distribution world-wide. 



Leaves broadly lobed or entire. 

 Leaves reniform, lobed. 

 Fruit winged ... 

 Fruit not winged 

 Leaves cordate, glabrous 

 Leaves deeply lobed or divided. 



Each carpel with a pit on each side ... 



Carpels pitted and rough. Leaves 3-lobed, obtuse 



Fruit unpitted. Leaves of 3-5 cuneate segments ... 



1. H. HIBTA, R. Br. Small, prostrate, and creeping, hairy, 

 reniform, with many broad shallow lobes, ^- 1 inch broad, 

 dense, many-flowered, axillary. Fruit about 1 line diameter, smooth. 

 peduncularis, R. Br., S. tasmanica, H., and S. vagans, H., included. 



Very common ; also throughout extra-tropical Australia. Fl. summer. 



2. H. PTEEOCARi'A, F. V. M. Small, prostrate, spreading. Leaves on 

 slender stalks, somewhat orbicular, crenate or with shallow clefts, ^-1 

 diameter. Flower-stalks shorter than the leaves, very slender ; flowers larger, 

 usually fewer and less cj owded than in S. hirta. Fruit very flat, the edge 

 expanding into a broad wing. 



Circular Head, George's Bay, Southport, Remine ; also in Victoria and South 

 Australia. Fl. Feb. 



3. H. TRIPAKTITA, It. Br. Small, slender, and prostrate, matted or spreading. 

 Leaves of 3-5 entire or toothed segments, usually under 3 lines diameter. 

 Flower-stalk slender, bearing a small loose head of 3-6 small, nearly sessile, 

 flowers. Fruit | line diameter, smooth or granular. S. mu.tcosa, Hook. 



Common in moist places. Throughout Eastern Australia. Fl. spring and 

 summer. 



2. 

 1. 

 6. 



4. 

 5. 

 3. 



S. pterocarpa. 

 H. kirta. 

 H. asiatica. 



H. callicarpa. 

 S. capillaris. 

 H.. tripartita. 



Leaves stalked. 

 Umbel stalked. 



long 

 inch 



