94 PLANCHON. — SUR LES DROSKH ACKKS. 



acervos 3-5 (placenta non conspicua) collecta. — Herbœ Novœ- 

 Hollandiœ extratropicœ , arenicolœ, humiles; caudicibus brevis- 

 simis v. paulo elongatis et congerie densissima foliorum vêtus - 

 torum inferne induviatis ; foliis petiolatis , haud peltatis ; stipulis 

 (summis in acervulum sœpius confertis) scariosis, argyreo-ni- 

 tentibus, geminis (singuli folii) in unam biner vatam, intra-axil- 

 larem concretis ; scapis nudis racemiferis, nunc paucifloris; flo- 

 ribus sœpius minutis.' 



Sp. typicse : D. platystigma Lehm. — Dros. pulchella Lehm. 



S&CT-. XI. Bryastrum. — Flores 4-meri. Stamina hypogyna. Styli 

 . 4, indivisi, apice stigmatico clavellati Ovula in acervula h col- 

 lecta, placentis haud conspicuis. — Plantula Australasiœ ex- 

 tratropicœ, fructifera muscum referens, acaulis ; foliis rosulatis, 

 longe petiolatis, orbiculato-peltatis ; stipulis in unam concretis , 

 argyreo-nitentibus ; scapis unifions, gracilibus, midis, striatis, 

 floribus minutis. 



Sp. typica : Dros. pygmaea DC. 



Suer. Xll. Lasiocephala. — Stamina 5, hypogyna. Styli 3, abasi 

 bifurcati , divisuris infra médium 3-4-fidis, laciniis (rigidulis) 

 apice subdilatatis. — Herbœ Novœ-Hollandiœ tropicœ , ebul- 

 bosœ , humiles , acaides v. e rosida foliorum radicalium caulem 

 sparse foliatum apice subdivision agentes; foliis longe petiolatis, 

 orbiculato peltatis; stipulis in unam inlra-axillarem , enerviam 

 concretis ; racemis elongatis simplicibus, ebracteatis. 



Sp. typicœ : Dros. petiolaris DC. — D. Banksii DC. 



Sect. XIII. Ergaleium DC. (excl. sp.). — Stamina 5 (rarissime 

 7-8) hypogyna. Styli 3 ( rarissime 2 ) in lacinias tenuissimas 

 confervoideas , penicellato -congestas soluti. Capsula poly- 

 sperma. n — Herbœ Australiœ extratropicœ (unica Asiœ tro- 

 picœ) bulbosœ, exstipulatœ ; foliis infimis squamœformibus, vix 

 conspicuis, v. subulatis limbo destitutis (his interdum per cau- 

 lem totum obviis et more spin arum Berberidum, ramulos axil- 



