45 



petals are not seen unless the flower is forcibly expanded. 

 The remarkable capsule of Anacampseros has been described 

 as consisting only of epicarp and endocarp, but it seems to me 

 that the white bristle-like parallel nerves, on which the three 

 membranous valves of the endocarp are spread, are really 

 a hardened, interrupted mesocarp, and, of course, the three 

 solitary nerves, which alternate with valves, belong to 

 the same layer of the pericarp. The membranous valves can 

 easily be separated from the nerves, which number 3-4 to 

 each valve, with a few finer lateral nerves, some of which 

 anastomose near the summit. The plant appears to be rare, 

 and is probably very local in its distribution. 



Cruciferae. 



Blennodia trisect a, Benth. Walloway (Dist. N). 



^Sisymbrium erysimoides, Desf . Quorn ; Hawker. Petals 

 yellow ; ripe pods diverging horizontally from the rhachis. 

 Growing thickly about the railway station at Quorn, and else- 

 where near the town. Apparently the first record of this 

 weed in Australia. Spain, North Africa, Arabia, Persia. 



Geococcus pusillus, Drumm. Morchard ; Carrieton (Dist. 

 N) : Hawker (Dist. S). 



Menkea australis, Lehm. Warren Gorge, near Quorn 

 (border of Dists. N and S). 



*Diplotaxis tenuifolia, DC. Lefevre Peninsula : Burn- 

 side. This weed was first recorded at Port Lincoln. 



Thlaspi cochlearinum-, F. v. M. Hawker. Pod shortly 

 winged and notched at the summit, as also in the specimens 

 from Lake Torrens Plain and Hookina in the Tate Herbarium. 



Crassulaceae. 

 TiUaea acuminata, F. M. Reader. Carrieton; Woolshed 

 Flat. 



Leguminosae. 

 Acacia Oswaldii, F. v. M. Warren Gorge, near Quorn 

 (border of Dists. N and S). 



Acacia Menzelii, *P- nova (tab. xi, ). Frutex valde 

 glutinosus, ramulis cylindraceis ob pilos minutos scabridis, 

 phyllodiis cylindricis 15-30 mm. longis vix 1 mm. diametro 

 rigidis erectiusculis obtusis plus minus curvatis 6-sulcatis, 

 sulcis fuscis resinosis, pedunculis monocephalis geminis sed 

 distinctis rarius solitariis 3-5 mm. longis glabris, capitulis 

 circiter 25-floris, fioribus pentameris , bracteolae lamina ovatd 

 concavd acuminata,, calycis lobis obtusis ciliatis tubum sub- 

 aequantibus, petalis liberis striatis calyce semel longioribus, 

 leguminis valvis 25-30 mm. longis 2-3 mm. latis extus 



