63 



iolioxutn, Desv. Little Althorpe Island (Dist. Y: S. A. 

 White). Valves of pod wingless and fruiting pedicels some- 

 times elongated. 



*Carrichtera annua (L.), Prantl. Sent to Department 

 of Agriculture from Port Pirie, and appears to have estab- 

 lished itself near that town. Spain, Eastern Mediterranean 

 region, and Mesopotamia. 



Crassulaceae. 



Tillaea acuminata, F. M. Reader. This species is widely 



-distributed in South Australia, and is distinguished from 



T. Sieberiana, Schult., aim. 1825 (T. verticillaris, DC., 



ami. 1828), by its pentamerous flowers, sessile or subsessile, 

 its broad abruptly acuminate scarious-striate sepals and its 

 long-beaked carpels, which (like the petals) are quite as long 

 as the sepals. In the flower the beaks protrude conspicuously 

 beyond the sepals. The carpels are tuberculate in the lower 

 half, a peculiarity not found in T. Sieberiana. The latter 

 species has almost always a few pedicellate flowers springing 

 from the clusters of sessile ones ; its flowers are tetramerous, 

 and the sepals are narrower, acute rather than acuminate, 

 and considerably exceed both the petals and the small obtuse 

 short-beaked carpels. (See figures in pi. vii.) Both these 

 species are common. I have specimens of T. Sieberiana from 

 sandhills at the Grange (near Adelaide), Clarendon, scrub 

 between Murray Bridge and Callington, Gladstone, Beetaloo, 

 Melrose, Loxton, Karoonda, Robe, and Kangaroo Island; 

 and of T. acuminata from Black Hill (near Adelaide), Bugle 

 Ranges, Halbury, Melrose, Woolshed Flat (near Quorn), 

 Berri, Blknchetown, Renmark, Karoonda, Taplan, Port Lin- 

 coln, and Minnipa. T. recurra, Hook. f. I have only found 

 this as a rare plant in the Onkaparinga, the North Para at 

 iSTuriootpa, and the Glenelg River. T. purpurata, Hook, f., 

 also appears to be very rare. Var. peclicellosa, F. v. M., of 

 T. macrantha, Hook, f., varies from the type by the very 

 long pedicels of some of the flowers, erect growth, and fewer 

 stems. The typical form has the stems often prostrate for a 

 short distance and rooting at the nodes. Ewart follows 

 Mueller's later opinion in raising var. pedicellosa to the rank 

 -of a species, but some specimens from Brighton, Strathalbyn, 

 Willunga, and Clarendon appear intermediate, and we have 

 not in this case any difference in the flowers to fall back upon 

 in case of doubt. Hooker, in his description of T . macrantha 

 (Fl. Tasm., i., 145), says: '"Squamis hypogynis nullis," and 

 Bentham is silent on this point. There is, however, a crimson 

 scale at the base of each carpel, although in the dried state 

 the colour is usually lost and the scale is difficult to find. 



