SYSTEM OF ENDLICHBE. 419 



B. Cellulares or Acotyledonece. 

 Class III. Aootyledones. 



Subclass 1. Folios^ HaTiug leaves. 



„ 2. Aphyllffi .... Leafless. 



By some recent authors this system has been modified, so as to 

 include, under Oorolliflorse, all Dicotyledons with united petals, 

 whether hypogynous or not, and to exclude from Class II. all plants 

 without flowers. It is then presented in the following form : — 



Modification of De Candollis System. 

 Class I. Dicotyledones or ExogensB. 

 Diohlamydese, r Subclass 1. Thalamiflorse . Petals distinct, stamens hypogynous. 

 having calyx ■! „ 2. Calyciflorse . Petals distinct, stamens perigynous. 

 and corolla. L „ 3. CorolUflorffi . Petals united, hearing the stamens. 

 Havingasing e / ^^ ^ Monoohlamydeffi A calyx only, or none. 

 Class II. Monoootyledones or Endo'gense. 



Subclass 1. Petaloidese or Floridse . Floral envelopes verticillate. 

 „ 2. Glumaoese . . . Floral envelopes imbricated. 



Class III. Aootyledones or Acrogense. 



Subclass 1. ^theogamffi . . . Having vascular tissue. 

 „ 2. Amphigamae or CeEulares . Entirely cellular. 



System of Endlicher. 

 REGION I.— THALLOPHYTA (BaWbs, frond, <I>vtov, a plant). No opposition 

 of stem and root. No spiral vessels, and no sexual organs. Propa- 

 gated by spores. 



Section i. Protophtta (ttpStos, first or originating). Developed without 

 soil ; deriving nourishment all around ; fructification indefinite. 

 Algae, Lichenes. 



Section ii. Hystebophyta (So-Tepos, posterior or derivative). Developed 

 on decaying organisms ; nourished internally from a matrix ; all 

 the organs appearing at once, and perishing in a definite manner. 

 Fungi. 



REGION II.— CORMOPHYTA (mpfUit, a stalk or trunk). Opposition of stem 

 and root. Spiral vessels and sexual organs distinct in the more 

 perfect. 

 Section ii. Acbobeya {&Kpa, summit, and ^piu>, to germinate). Stem in- 

 creasing by the apex, the lower part being unchanged, and only 

 conveying fiuids. 



Cohort 1. Anophyta (S-va, above). No spiral vessels. Both sexes 

 present. Spores free within spore-cases. Hepaticae, Musci. 



Cohort 2. Protophyta. -Bundles of vessels more or less perfect. Both 

 sexes present. Spores free withifl one- or many-celled spore-cases. 

 Filices, Equisetaceae, etc. 



Cohort 3. Hysterophyta. Both sexes perfect. Seeds without a true 

 enjbryo, consisting of many spores. Parasitic. Balsmophoreae, 

 CytinesB, etc. 



