CONIFÈRES. 45 
VIII? CASUARINEÆ. 
24. Casuarina Forsr. — Flores 1-sexuales; masculorum perian- 
thi foliolis (v. bracteis) 1-#, 1, 2-seriatim decussatis, basi circum- 
cissis, Stamen 1 (?); filamento in alabastro inflexo, demum porrecto; 
antheræ majuseulæ loculis 2, distinctis, dorso oppositis, longitudina- 
liter rimosis. Flores fœminei nudi; germine minuto, 1-loculari; styli 
brevis ramis elongalis linearibus, a basi continue stigmatoso-papillo- 
sis. Ovula in loculo aut 2-4, basilaria, placentæ brevissimæ affixa 
orthotropa erecta; aut hinc 2, placentæ plus minus alte productæ 
centrali-liberæ bast obliqua affixa ; micropyle omnium supera. Fructus 
in strobilum ovoideum v. cylindraceum conferti; bracteis bracteo- 
lisque floralibus auctis induratis sæpius lignosis plus minus coalitis; 
bracteolis primum valvatim clausis, maturitate apertis. Fructus 
(achænium) lævis, a latere compressus, apice in alam verticalem 
medio stylo percursam productus. Semen 1, erectum v. basi oblique 
affixum; integumento membranaceo; embryonis exalbuminosi recti 
cotyledonibus æqualibus complanatis; radicula supera brevi. — 
Arbores v. frutices; ramis ramulisque rigidis, erectis v. pendulis, 
plerisque deciduis, cylindraceis, verticillatis v. sparsis, 4-gonis, ad 
nodos sæpius articulatis. Folia ad nodos 4-8, ad squamas reducla 
parva verticillata appressa, nunc in vaginam brevem connata ; costis 
decurrentibus angulos caulis formantibus; squamis nodi cujusque 
cum illis nodi inferioris v. superioris alternantibus; floribus masculis 
in spicas simplices v. compositas, cylindraceas v. 4-gonas, disposilis, 
ramulos sæpius deciduos terminantibus; fœmineis in spicas v. stro- 
bilos globosos v. ovoideos dispositis; spicis in ramis persistentibus 
terminalibus v. lateralibus; bracteis v. squamis verticillatis; brac- 
teolis 2, de et Oceania trop., Ins. Mascaren., Ins. Mar. Pacif.) — 
Vid. p. 9 
