568 SYSTEMATIC BOTANY. 



be particularly noted by the student. Thus, we find apetalous 

 plants in the Celastracece, Bhamnaceoe, Anacardiacece, Legu- 

 minoscE, Rosacece, Lythracea, Saxifragacece, Cunoniacece, Paro- 

 nychiacece, Mesemhryacece, PassifloracecB, Myrtacece, Onagracece, 

 Haloragacece, Combretacece, HamameUdaceoe, and Araliacece. 

 Monopetalous corollas occur commonly in Stackhousiacece, 

 Papayacea; Cnciirbitacece, and BelvisiacecE, and occasionally in 

 Crasnulacect, Portulacacea, Lecythidacacece, and Araliacece. In 

 some calycifloral Exogens again, the stamens are whoUy, or in 

 part, hypogynous or nearly so, as in Anacardiacece, Connaracece, 

 Leginninosce, Saxifragacece, Crassulacece, Francoacece, Parony- 

 cliiacece, and Portulacece. 



Unisexual flowers always occur in Hensloviacece, Papayacea, 

 Pangiacece, and Cucurbitacece, and sometimes in Rosacea, Hy- 

 drangeacecc, Passijloracece, Grossidariacece, Haloragacece, Com- 

 bretacece, Cornacece, Hamamelidacece, and Araliacece. 



Exceptions also not unfrequently occur to the characters 

 commonly found in the perigynous and epigynous subdivisions 

 of the Calyciflorff. Thus, in the Perigynaj we sometimes find 

 the ovary partially or Avholly inferior instead of superior, as 

 in Vochysiacecc, Rhamnacece, Anacardiacece, Rosacece, Saxifra- 

 gacece, HydrangeacecE, Cmioniacece, Portulacacecp, and Mesem- 

 bryacece. The exceptions to the ordinary inferior ovary of the 

 Epigynse are much more rare, only commonly occurring in 

 Myrtacece, Melastomacece, and Bnmiacece, where the ovary is 

 sometimes partially or wholly superior. 



Sub-class 3. — CorolliflorcE. 

 1. Epigyna). 



The Natural Orders placed in this sub-division were included 

 by Dc Candolle in the Calyciflora;; the Corolliflorse being 

 restricted by him to those monopetalous orders in which the 

 corolla was hypogynous, and the ovary consequently superior, 

 and which are placed in our arrangement in the sub-divisions 

 Hypostamineaj and Epipetalse. The simplest arrangement, 

 however, for the student is, to consider the Monopetalous 

 Corolla as the essential mark of the CoroUiflora, and in accord- 

 ance with tliis view we place this sub-division here. It should 

 be noticed, however, that some monopetalous orders have been 

 placed by us in the Calyciflorjc. (See p. 567.) 



Natural Order 122. — Caprifoliace.'e. — The Honeysuckle 

 Order. — General Character. — Shrubs, or rarely herbs. 

 Leaves opposite {fig. 2G2), cxstipulatc. Calyx superior {fg. 

 942), 4— 5-cleft, usually bractcatcd. Corolla monopetalous {Jig. 

 943), 4— 5-cleft, tubular or rotate {fig. 943), regular (y?^. 943), 



