— 2>t — 



Ordo IV. Articulatae. 



Arb. — frut, ramis articulatis, foliis plerumque abortivis; 

 perigonii rudimentum, antherae biloculares, ovula 1-2, atropa 

 V. analropa, slrobilus 1-2 - oo - spermus, albumen carnosum 

 V. nuUum. 



FAM. 59. CNETACEiE. 



Frutices — arbores, ramis oppositis v. fasciculatis, articulatis, 

 foliis oppositis, ellipticis v. abortivis. Flores mon- dioeci, amenta- 

 cei: stamina solitaria V. monadelpha, antheris bilocularib. acro- 

 schizis, perigonio bifido et bracteato. Ovarium apice pervium, 

 uniovulatum, sohtar. — vaginulatum, v. duplex et carpophyUis 

 sterihbus decussatis 2-6 involucratum ; ovula atropa, erecta, 

 micropyle styhformi , pervia, longe exserta (tubilhis). Bacca 

 monosperma v. strobilus , passim baccatus , 1-2-spermus: 

 testa membran. v. coriacea , albumen carnosum , embryo 

 longus V. brevis, bifidus, radicula supera: — Gmtum^ Ephedra 

 ( spec. 21 ). 



FAM. 40. C ASU ARIN ACEiE. 



Ailjores V. frutices equisetiformes, ramis ramulisque sub- 

 verticillatis, articulatis, Vaginulatis, aphyllis ; lignum septis 

 medullaribus radiantibus et concentricis interceptum, cortice 

 crasso. P7orei mon-dioeci: cf intra vaginas ramulorum verticil- 

 lato-spicati, monandri; quilibet bracteolis tribus^ calyptra bi- 

 fida et anthera incumbente, biloculari; § capitati: quihbet 

 bracteola, ovario bivalvi, primitus hiante, tunc clauso, de- 

 mum aperto, ovulo 1 inverso et anatropo ac sti^malibus 2 

 elongatis, ovulo adhaerentibus. Strobilus c carpellis oo rigidis, 

 demum bifidis, monospermis; semen caducvim, compressum, 

 ovatum, acropterum, inter teslam ct tcgmen fibriltosum , ex- 

 albuminosum; cotyledones 2 ovatae, planae, radicula brevissi- 

 ma 'supera : — Casuarina. 



