176 



ii. , 47-55, Dausk Botan. Arkiv, 1918). An effort is here 

 made to do the same work for the species of this State. 



Key to the South Australian Species of Frankeriia. 



Section Toichogonia, Niedenzu. Placentas- parietal, each 

 bearing 1 or more ovules; funicles either ascending and the 

 ovule with an inferior micropyle, or deflexed and the ovule 

 with a superior micropyle. 



A. Placentas 3, each bearing several ovules, 



funicles ascending, micropyle inferior. 



a. Leaves petiolate, subcylindrical, almost 



glabrous ; ovules 3-6 to each placenta ; 



diffuse plant, chiefly maritime F. pauci flora 



b. Leaves sessile, linear, ashy; inland plants. 



1. Leaves rather flat, several at the nodes, 



as long as or shorter than the inter- 

 nodes ; ovules 8-9 to each placenta ; 

 erect plant F. foliosa 



2. Leaves subcylindrical, few at the nodes, 



small but much longer than the 

 internodes ; ovules about o to each 

 placenta; creeping plant F. muscosa 



B. Placentas 2-3, each bearing 1-2 ovules; 



funicles deflexed, micropyle superior ; 

 leaves sessile. 



1. Placentas 3, each bearing 2 ovules; leaves 



ovate-cordate, glabrous and pitted 



above F. cordata 



2. Placentas 2, each bearing 1, rarely 2 



ovules; leaves small, subcylindrical, 



ashy F. fruticulosa 



Section Basigonia, Niedenzu. Placentas basal, each 

 bearing 1 ovule on a long funicle, erect in the lower part, 

 deflexed and often twisted in the upper part ; micropyle 

 superior. 



Placentas 3, rarely 2 ; leaves petiolate, sub- 

 cylindrical or ovate and almost flat ; hairy 

 plant F. serpi/llifolia 



Frankenia pauciflora, DC. (pi. xvii.). A diffuse shrub, 

 scarcely 30 cm. high, growing in intricate masses in salt 

 ground, usually near the sea; branches pubescent; leaves 

 subcylindrical, glabrous above but sometimes covered with a 

 white incrustation, midrib usually concealed, but prominent 

 below in transverse section ; calyx almost glabrous, 5-6 mm. 

 long by 1J mm. broad; petals pink, usually 5, rarely 4, free; 

 stamens 6; style-branches 3, stigmas decurrent on one side 

 for h or f of their length; ovules 3-6 to each placenta. — 

 Patawalonga Creek and sandhills near Glenelg ; salt swamps, 

 Port Noarlunga ; Port Elliot; Beachport ; Robe ; Pondalowie 

 Bay (S. A. White) ; salt lagoon, Dudley Peninsula, K.I. ; 



