424 



NATUEAL SYSTEM IN MANUAL. 



Sulodivisiou II. Ovary inferior — Perianth more or less distract In the 

 4 , or 9 , or hoth. 

 Cohorts. — 35, Asarales ; 36, Quemales ; 37, Santalales. 



Suh-class II. Gymnospermous. 



Ovules produced superficially on a scale (bract or bpen ovary) ; ferti- 

 lised hy the direct application of the pollen to the apex of the nucleus, 

 which the pollen-tube penetrates. Flowers unisexual (except in 

 Welvyitschia.) 



Class II. Monocotyledons. 



Division I. Ovary inferior — Perianth usually distinct ; 2-seriate and 

 coloured. 

 Cohorts. — 1, Hydrales ; 2, Amomales ; 3, Orchidales ; 4, Taccales ; 5, 

 Narcissales ; 6, Dioscorales. 



Division II. Ovary superior. 



Subdivision I. Ovary apocarpous. 



Cohorts. — 7, Triurales ; 8, Potamales. 

 Subdivision II. Ovary syncarpous. 



Cohorts. — 9, Palmales ; 10, Arales ; 11, Liliales ; 12, Pontederales ; 

 13, Commelynales ; 14, Eestiales ; 15, Glumales. 



SuB-KtNGDOM II. — CeTPTOGAMOUS, AOOTTLEDONOUS, OB FlOWBBLESS 



Plants. 

 Class III. Acrogens. 



Cohorts. — 1, Filicales ; 2, Muscales. 

 Class IV. Thallogens. 



In the succeeding pages the natural orders will be grouped under 

 the foUowing divisions : — 



A. Phanerogamous, Cot¥ledonous, oe Ploweking Plants. 



Class I. Dicotyledones or Exogense. 



Sub-class 1. Thalamiflorffl. ...Petals distinct,"] 



stamens hypogynous 



2. Caly ciflorffi Petals distinct 



or united, stamens perigynous 



or epigynous 



Section 1 . Polypetalae Petals 



Dichlamydese, 

 having calyx 

 and corolla. 



Polypetalae of Jus- 

 sieu, and Monopet. 

 Peri- and Bpi-co- 

 rolte. 



Having a sin- 

 gle perianth. 



2. Gamopetalse."... Petals 



coherent 



— 3. CorolMor^ Petals united, 



corolla hypogynous, usually 

 bearing the stamens 



— 4. Monochlamydeae...A calyx only, 



or none 



«. Angiospermaj, seeds in an 



ovary. 

 6. GymnospermfE, seeds naked. . 



Monopetalse Hypo- 

 coroUse of Jussieu. 



Apetalse and partly 

 Diclines of Jussieu. 



