MYRTACEjE. 373 



46. Thryptomene Endl.^— Flowers 5-merous; receptacle short, 

 cylindrical, turbinate or hemispherical. Sepals 5, entire, patent, 

 persistent (petaloid). Petals 5, connivent, persistent. Stamens 5-10, 

 alternipetalous;^ filaments short inflexed; anthers introrse, some- 

 times crowned with globular apiculate connective ; cells distinct, at 

 apex poricid or shortly rimose. Germen inferior, adnate within to 

 receptacle ; ovules in cell 2, ascending (of Calythrix) or more rarely 

 4-10, inserted on a more or less elongate dissepimentiform parietal 

 placenta ; style slender simple, at apex capitate stigmatose. Fruit 

 dry, 1-2-spermous, indehiscent or spuriously 2-coccous. Seeds glo- 

 bose or hemispherical ; radicle of exalbuminous embryo very thick ; 

 cotyledons minute inflexed to apex of slender neck. — Ericoid glabrous 

 shrubs ; ^ leaves opposite entire, small or minute, thick pellucid- 

 punctate; flowers axillary, solitary or more rarely few cymose; 

 pedicels articulate under flower ; bracteoles 2 lateral, partly scarous, 

 deciduous. {Australia.'^) 



47 ? Homalocalyx F. Muell.^ — Flowers nearly of Thryptomene ; 

 5-merous ; perianth caducous. Stamens oo (8-20) ; anthers versa- 

 tile. Germen inferior; ovules 2, inserted on eccentric subbasilar 

 placenta. Fruit . . . ? Other characters'of Thryptomene^ (or Lhotzhja). 

 — Ericoid glabrous shrubs ; leaves alternate or rarely opposite, 

 closely packed entire (small) ; flowers axillary solitary subsessile ; 

 bracteoles 2 lateral, broad marginally or entirely scarious, generally 

 persistent. ( Warm Australia?) 



48 ? Micromyrtus Benth.^ — Flowers nearly of Thryptomene ; 

 sepals 5, persistent (sometimes 0). Petals 5, small, patent, deciduous, 

 more rarely persistent. Stamens 5, oppositipetalous, or 10 ; anthers 

 small, 2-rimose. Germen 1-locular ; ovules 2-4, descending from 

 apex of filiform placenta extending from bottom to top of cell, colla- 

 teral. Fruit, seed, embryo, etc., of Thryptomene? — Ericoid shrubs; 



^ Aim. Wieji. Mies. ii. 192 ; Nov. Stirp. Mus. i. 156; (1862) li. 324.— F. Muell. Fragm. i. 11 ; 



Vindob. Lee. 72 ; Gen. n. 6277.— Schau. Myrt. iv. 63, 169.— Walp. Eep. v. 732, Ann. i. 306; 



Xeroc. t. 6A.— B. H. Gen. 700, n. \0.—Pary- iv. 822. 



phantha Schau. Linncea, xvii. 235. — Astrcsa ^ Hook. Kew Journ. ix. 309. — B. H. Gen. 699, 



Schau. loc. cit. 238 (not YjL.)—Eremopyxis H. n. 9. 



Bn. Adansonia, ii. 328. " Of which perhaps only a section and to 



2 1 or 2 stamens before each sepal. which it has been more recently referred (F. 



^ Habit of Bceckea or Leptosjjermum. Mxtell. Fragm. iv. 63, 77). 



** Spec 17. Schau. Pl.Preiss. i. 102.— A. Cunn. ? Spec. 2. Benth. FL Austral, iii. 5Q. 



Brd. Mag. t. 3160 {£cec7cea).-'DG. Mem. Myrt. t. « Gen. 700, n. 11. 



14 {B(eclcea).~Roo-si. f. Hooh. Kew Journ. v. 299, » Of which perhaps a section (?). 

 t. 8; Fl. Tasm. i. 128.— Tuiicz. Bull. Mosc. (1847) 



