44 



THE TASMANIAN FLORA. 



The following European plants have been introdiiced mostly as weeds of 

 Gnltivation ; — 



RuBDS FEUTicosus, Linn. Similar but larger than i2. parvifoUtts. Leaves, 

 not pale beneath. Fruit black. 



Rosa eubiginosa, I/. Floral tube very concave, forming a hollow cup- 

 nearly closed above. Petals pink. Fruit formed of the red floral tube 

 containing the dry carpels. 



PoTENTiLLA ANSEEINA, IJinn. Spreading herb. Leaves much divided, white.. 

 Flowers white. Sepals 8-10, united at the base only. Torus convex.. 

 Fruit-carpels numerous, dry, ] -seeded. 



PoTENTiLLA BEPTANS, Linn. Similar to the last, only leaves green, in 5. 

 coarsely-toothed leaflets, arising from the end of a slender stalk. 

 Flowers yellow. 



3. AC^NA. 



Pistil of a single l-seeded carpel. Floral tube tubular around the pistil. 

 Stamens 2-10, inserted at the top of the tube. Petals none. 



The genus has a wide distribution in the Southern Hemisphere, and appears, 

 also in North America. 



Flowers in small clusters along the upper part of the 



stem ... ... ... ... ... ... ... 1. A. ovina. 



Flowers in spherical terminal heads ... ... 2. A. sanguisorhee. 



1. A. oviNA, Cunn. A small decumbent ascending herb. Leaves 2-4 inches 

 long, much divided into opposite leaflets, the largest near the end ; leaflets f-f 

 inch long, deeply lobed, pale beneath. Stem erect, with very few small leaTes, 

 1-2 feet. Flowers clustered in the upper half, very snaall, green and brown. 

 Sepals mostly 4-6. Stamens variable in number, usually 8-10. Fruit of the- 

 persistent floral tube, on which are developed barbed spines. 



Very common ; also throughout extra-tropical Australia, New Zealand, and 

 South America. Fl. Oct. -Nov. 



2. A. SANGTJISOEBJ!, Vahl. Very similar to the last, only of a more creeping- 

 habit. Leaflets larger and more toothed than lobed, not pale beneath except 

 where silky hairy. Flowers in a spherical dense head, head on a long or short 

 stalk. Calyx-lobes usually 4. Stamens 2. Spines of the fruit mostly \ inch 

 long, barbed one arising outside the base of each sepal. 



Very common ; also throughout South and East Australia, New Zealand, and 

 South America. Fl. Oct. -Nov. 



Var. montana. Leaves very silky beneath. Spines of fruit about 1 line- 

 long. A. montana. H. 



The following have been introduced from Europe : — 



PoTEEiUM SANGUisOEBA, LiniL Similar in general habit to Acana sangui- 

 sorhce, but more erect. Sepals longer. Stamens numerous- Fruit not 

 developing spines. 



Alchemilla aevensis. Scop. A little decumbent annual, 1-2 inches long. 

 Leaves small, deeply divided. Flowers minute, green, in little axillary 

 clusters. 



Oedee XXYII.—SAXIFRAGACE^. 



Pistil of 2'-5 blended carpels. Ovarian cavities in typical plants half immersed, 

 and connate with the floral tube. Stamens as many as the sepals to very 

 nunaerous, inserted with the petals into the top of the floral tube. Sepals and 

 petals 4 or 5. 



