448 



INTRODUCTION TO CRYPTOGAMIC BOTANY. 



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Anthoceride(e. — Sporangium threaded by the 



columella. 

 3/onoclece. — Columella, 0. 



Aneurea;. 



Metzfferice. — Fronds forked. Involucre mono- 

 phyllous, ventricose. Elaters 

 apical, persistent. 



Haplolcenece. — Fronds bifid. Involucre short, 

 monophyllous, or wanting. Pe- 

 rianth wanting. Elaters mostly 

 parietal, deciduous. 



Diplomitriece. — Fronds sinuate or lobed. 

 Perianth tubular. 



Codoniece, — Fronds pinnati-partite or lamel- 

 late above. Perianth campanu- 

 late. 



Juhulece. — Elaters unispiral. Involucre of a 

 different shape from the leaves, 



Platyphyllce. — Leaflets entire above with a 

 folded lobe. Involucre of the 

 same shape as the leaves. 



Ptilidiece. — Involucre thick, imbricated ; fruit 

 terminal or lateral ; leaves divi- 

 ded ; stem mostly pinnate. 



Coelocaules. — Fruit inserted in a cavity of the 

 stem. 



Trichomanoideoe. — Fruit hypogenous, Eami- 

 fication irregular. 



' Geocalycece. — Fruit on a distinct often succu- 

 lent torus, rooting into the soil. 

 Jungermannidece. — Perianth free, terminal. 

 Gymnomitria. — Perianth 0, or connate with 

 the involucre. Fruit terminal. 



