GENERA OF CLASS III. TRIANDRIA. 67 



CHAP. VI. 



OF THE THIRD CLASS, TRIANDRIA. 



THIS class consists of such plants as bear bisexual flowers., 

 furnished with three stamina. The orders are three. 



Order 1. Monogynia, comprehending such plants as have but 

 one style. This order contains forty-five genera, distinguished 

 into, 1. Those ivhose flowers are superior, of which there are ten, 

 viz. Valeriana (z>a/m«n)...MEL0THRiA... Dilatris... Melotria 

 ... Crocus... Antholyza... Gladiolus... Iris...Ixia...Aristea..„ 

 Mor;£a. 2. Flowers inferior, not glumaceous, of which there are 

 twenty-three, viz. Wachendorfia ... Commelina... Calitsia..* 

 Xyris...Witsenia... Marica... Ziphidium...Gommelina... Oxy- 

 baphus...Macrolobium... Rohria... Hypocratea...Tonsella... 

 Loeflingia... Willichia... Syena... Rumphia. . .Fissilia. . .Cneo- 

 rum . . .Comocladia. . .Olax. . .Rotala . . .Ortegia. . .Poly chemum. 

 3. Such as have an imbricated amentum, and are gymnospermous ; 

 of which there are twelve, viz. Schcenus...Cyperus./. Scirpus 

 ...Eriophorum... Lygeum... Nardus... Kylljngia... Fuirena.,, 



MASSANIA...MlEGIA...CENCHRUS...and PoMMERCULLIA. 



Order 2. Digynia, comprehending such plants as have tivo 

 styles. This order contains thirty-three genera, viz. Cornu- 

 copia... Saccharum...Panicum...Phleum (cafs-tail grass).., Alo- 

 pecurus {fox -tail grass)... Milium (millet -grass)... Agrostis (bent- 

 grass) ... A 1 r a ... M el 1 c a ... P o a (meadoiv -grass) . . . B r i z a (quaking- 

 grass) ... Uniola... Dactylis (cock's-foot grass) ,.. Cynosurus 



{dogs-tail grass) . . .Festuc a . . . Brom us Stipa ( feather-grass) . . . 



Avena (o^)...Lagurus (hare's-tail grass) . . . Arundo (reed)... 

 ArISTIDA..,L0LIUM (c/anic/).,.ELYMUS.,.SECALE (/-^...Hordeum 



F2 



