MYRTACEM. 373 



46. Thryptomene Endl. 1 — Flowers 5-merous ; receptacle short, 

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

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

 alternipetalous ; 2 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, indéhiscent 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 ; 3 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. 5 — 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 5 (or Lhotzhya). 

 — 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. 1 ) 



48 ? Micromyrtus Benth. 8 — 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 ; 



1 An». Wien. Mus. ii. 192 ; Nov. Stirp. Mm. i. 156; (1862) ii. 324.— F. Muell. Fragm. i. 11 ; 

 rindob. Dec. 72 j Gen. n. 6277.— Schau. Myrt. iv. 63, 169.— Walp. Rep. v. 732, Ann. i. 306 ; 

 Xeroc. t. 6 A.— B. H. Gen. 700, n. 10.— Pari/- iv. 822. 



phantha Schau. Linncea, xvii. 235. — Astrœa b Hook. Kew Jotirn. ix. 309.— B. H. Gen. 699, 



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



Bn. Adansonia, ii. 328. 6 Of which perhaps only a Bection and to 



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



3 Habit of Bteclcea or Leptoepermum. Muell. Fragm. ir. 63, 77). 



4 Spec 17. Schau. Pl.Preiss. i.102.— A.Cunn. ' Spec. 2. Benth. Fl. Austral, iii. 56. 

 Bot. Uaq. t. 3160 {Bœckea).— DC. Mém. Mijrt. t. 8 Gen. 700, n. 11. 



14 [Backed). — Hook. f. Hook. Kew Jouru. v. 299, » Of which perhaps a section (?). 



t. S, Fl. Tasm. i. 128.— Tuitcz. Bull. Mosc. (1847) 



