OELASTEACEM. 



contain each a seed, the membranous integuments of which enclose a 

 fleshy albumen. Its axis is occupied by an embryo of equal length 

 with cylindrical and inferior radicle and cotyledons plane or plano- 

 convex and more or less thick. 



There are some Stackhousias of which a special genus has been 

 made under the name of Tripterococcus (fig. 9-11). The three 

 achenes 1 of its fruit arc prolonged each in three vertical wings 

 of which one is dorsal and two are marginal, the latter much more 

 developed than the former (fig. 11). The corolla is generally longer 



Slackhousia {Tripterococcus) Brunonis, 



Flower. {{). 



Fig. 11. Fruit (f). Fig. 10. Long. sect, of flower (*). 



and narrower than that of the other species of the genus, and its 

 pieces are terminated by a long point. Thus composed, the genus 

 Stackhousia contains a dozen species 2 of herbs, sometimes frutescent 

 at the base, with a woody subterranean rhizome, aerial herbaceous 

 branches, clothed with alternate leaves, and stipules none or very 

 little developed. Its flowers 3 are terminal, sometimes solitary, oftener 

 collected in simple or compound clusters ; they are inserted in the 

 axils of alternate bracts and accompanied with lateral bracteoles. 



1 At first the mesocarp is a little fleshy, and 

 the wings separate from the hard and striated 

 putamen, externally very rugose. 



2 Labill. PI. Xouv.-Eoll. i. 77, t. 104. — Sieb. 

 in Spreng. Syst. Cur. Post. 124 ; Hook. Jouru. of 

 Bot. ii. 421.— Hook. Icon. t. 269.— Lindi,. Bot. 

 Beg. t. 1917. — Sm. Bees Cycl. xxxiii. — A. Rich. 



Voy. Astral. But. 89, t. 33.— Hook. f. Fl. Tasm. 

 i. 79 ; Fl. N.-Zcl. i. 47 ; Man. N.-Zcal. Fl. 42. 

 — F. Muell. Trans. Phil. S«c. Vict. i. 101 ; PL 

 Vict. ii. t. 14; Fragm. ii. 359; iii. 86. — Benth. 

 Ft. Austral, i. 405.— Walp. Ann. v. 768, 770 

 Tripterococcus) ; vii. 585. 

 3 White or yellow. 



