ENDLICHERS NATURAL SYSTEM. 



415 



Region 1. Thallophtta. Plants -vvith no opposition of stem and 

 root ; with no vessels and no sexual organs ; and 

 with germinating spores lengthening in all direc- 

 tions. 



Section 1 . Frotophyta. Plants developed without soil ; draw- 

 ing nourishment from the element in which they 

 grow; and having a vague fructification; as in 

 Algse and Lichenes. 



Section 2. Hyderophyta. Plants formed on languid or decay- 

 ing organisms ; nourished from a matrix ; all the 

 organs developing at once, and perishing in a 

 definite manner ; as in Pungi. 



Region 2. Coemophyta. Plants with stem and root in opposite 

 directions; spiral vessels and sexual organs dis- 

 tinct in the more perfect. 



Section 3. Acrobrya. Stem growing at the point only, the 

 lower part being unchanged, and only used for 

 conveying fluids. 



Cohort 1. Anophyta. Having no spiral vessels ; both sexes 

 perfect ; spores free in spore-cses. Examples, 

 Hepaticse and Musci. 



Cohort 2. Frotophyta. Having vascular bundles more or 

 less perfect; male sex absent; spores free in 

 one- or many-celled spore-cases. Examples, 

 Pilices and Equisetacese. 



Cohort 3. Hysterophyta. Having perfect sexual organs ; 

 seeds without an embryo, polysporous ; para- 

 sitic. Example, Rhizantheee. 



Section 4. Amphihrya. Stem growing at the circumference. 



Examples, Grraminese, Liliaceae, Iridaceae, Orchi- 



dacese, and Palmaeese. 

 Section 5. Acramphihyra. Stem growing at both the apex 



and circumference. 



Cohort 1. GymnospermcB. Ovules naked, receiving impreg- 

 nation immediately by the micropyle; as in 

 Coniferse. 



Cohort 2. Apdahe. Calyx absent, rudimentary or simple, 

 calycine or coloured, free or united to the 

 ovary. Examples, Cupuliferae, Urticacese, and 

 Polygon ese. 



Cohort 3. Gamopetalce. Both floral envelopes present, the 

 outer calycine, the inner corolline, the latter 

 being monopetalous ; rarely abortive. Ex- 

 amples, Compositse, Labiatse, Scrophularineee, 

 and Ericaceae. 



