124 NATURAL HISTORY OF PLANTS. 



GENERA. 



I. CAXDOLLE^. 



1. Candollea Labill. — Flowers 5-merous. Sepals imbricated, 

 persistent. Petals usually 5, alternate with the sepals, variably 

 imbricated deciduous. Stamens united to a variable heisrlit into 

 5 alternipetalous l-3o -androus bundles (besides single free oppo- 

 sitipetalous stamens, in a few species) ; filaments free at the apex. 

 Anthers introrse, dehiscing by '2 clefts. Carpels 5, more rarely 

 3, 4, opposite the petals, 1-, 2-, very rarely 3-ovulate ; ovules ascend- 

 ing ; micropyle introrse inferior ; styles sulcate interaally, bearing 

 capitate stigmas. Eipe carpels subcamose, or more usually dry, and 

 dehiscing as follicles. Seeds 1 or 2, arillate ; albumen fleshy ; 

 embryo minute. — Shrubs or undershrubs ; leaves alternate simple 

 articulated at the base exstipulate ; flowers solitarj- terminal {S. E. 

 Audralid). — See p. 85. 



2. Adrastaea DC. — Flowers 5-merous. Sepals imbricated per- 

 sistent. Petals 5, more rarely 8, 4, alternate with the sepals, 

 imbricated deciduous. Stamens 10, in two whorls, the inner 

 subalternipetalous ; filaments flattened cohering at the base ; 

 anthers basifixed introrse dehiscing by 2 clefts. Carpels 2 ; ovules 2, 

 ascending; styles subulate; fruit 2-follicular. — An undershrub ; leaves 

 alternate, sessile, articulate; flowers sessile terminal {W. Australia). 

 See p. S7. 



3. Pachynema P. Br. — Flowers 5-merous. Sepals and petals 

 free imbricated. Stamens 9-11, variably arranged, 2 sterile interior 

 club-shaped, usually alternate with the carpels, 7-9 fertile; filaments 

 flattened or club-shaped or conoidal ; anthers introrse, dehiscing 

 by 2 clefts. Carpels 2, 2-ovulate ; when ripe drj- 1 -seeded ; 

 seed arillate. — Herbs or shrubs ; branches rush-like or flattened 

 (cladodia) ; leaves minute scale-like deciduous ; more rarely few, 

 3-fid ; flowers axillary, solitary or few ; pedicel recurved {Australia). 

 See p. bS. 



