CONSPECTUS OF ORDERS AND FAMILIES. 

 sporophylls which are arranged in a cone-like terminal spike or 



Class III.— FILICINE^. 

 226. Leaves well developed relatively to the stem, often very large 



' - so much modified as to appear as special non-foliar 



organs at the bases of t!u- leaves. Fertile leaves not confined to a 



A. HOMOSPOROITS FlLICINJ 



(though sometimes grouped i 



its of leaves modified into 



rangiate Ferns. 



roup of cells. Either very large ferns 

 , or small ferns with usually a single 

 sn f oliaceous part and an inflorescence- 



Very large ferns 



grouped, or sporangia com 



aynangia. A 



f II. Ophioglossales. 

 ferns without stipules. Rhizome ver 

 mally solitary and dividing ii 



J inflorescence-like spore-producing spike or panicle 

 Sue 2 .' ValVed .! P ° rangia . ^^F^O^l^M^^mzl 

 2. Leptosporangiale Ferns. 



Will. POLYPODIALES. 



The sporangia arise from a single epiden 



id are usually collected into ho individual 



