186 PLANCHON. — SUK LES DKOSÉRACÉES. 



Calycis 4-5 rarius 8-partiti et Corollœ 4-5, rarius 8-petalae, aes- 

 tivatîo imbricata. Stamina 4-20 , hypogyna v. leviter perigyna, 

 Antheris saepius extrorsis , in Byblide introrsis. Discus 0. Ova- 

 rium 2-5-merum, superum , saepius 1-loculare et pluriovulatum, 

 placentatione parietali, marginibuscarpellorum ovuliferis, v. ba- 

 silari ; nunc incomplète 2-loculare, placentis sub fenestra septi 

 utrinque prominulis , pluriovulatis; nunc complète 3-ioculare, 

 ovulis, in loculo singulo solitariis et sub apice anguli interni af- 

 fixis, pendulis. Styli%b, rarissime in unum concreti, saepiusima 

 basi tantum cohserentes, simplices v. saepius varie divisi. Cap- 

 sula, si 1-locularis, secus dorsum médium carpellorum dehiscens 

 in valvas 3-5 medio seminiferas (nisi placentatio sit basilaris) v. 

 in Dionœa irregulariter rupta ; si 2-3 locularis , loculicide dehis- 

 cens, valvis medio septiferis. Semina anatropa , testa saepius 

 crustacea, scrobiculata , nunc fungosa v. in sacculum scobifor- 

 mem relaxata. Albumen carnosum v. carnoso-farinaceum. Em- 

 bryo sœpe subconicus, albuminis basi (umbilico contiguae) 

 truncatae v. foveatae applicitus v. semi-immersus (fere ut in 

 Reaumuriaceis) nunc teretiusculus , exilis et albumine undique 

 inclusus. Cotyledones'm embryoneconico brevissimge,inembryone 

 tereti radiculam cylindraceam haud aequantes, semi-cylindricre, 

 facie plana sibi applicitae. 



Herbae perennes (rarius suiïruticu\i) paludosœ v. arenicolœ , per 

 orbem totum , plagis polaribus exceptis , diffusœ, humiles , sœpius 

 scapigerœ. Rhizoma sœpius abbreviatum , supra basim prœmor- 

 sam fibras radiculares agens, nunc e tuberculo [rêvera rhizomatico) 

 enatum , superne rosula foliorum humo admota coronatum v. in 

 caulem foliatum assurgens. Folia fere semper vernatione circinnata, 

 conferte v\ laxe alterna v. rarissime verticillata, nunc uniformia, 

 nunc primordialia infima v. caulina primœ evolutionis lamina 

 destituta, perfecta sœpius pilis mollibus glandula guttulam, viscidam 

 stillante terminatis ornata, irritabilia v. inertia, insectorum capto- 

 rurn reliquiis fere semper onusta. Stipulas rarius ()> nunc filamen- 

 torum instar petioli lateribus utrinque adnatœ , sœpius conspicuœ , 

 scariosœ , in unam petioli basi intus adnatam v. cauli ipso supra 

 folivm insertam concrctœ, eè sœpius varie fi ssœ. Scapi basi lares , 



