( 5 ) 
* Habit and growth of Aspidium : sori not 
forked. (Leptogramme Stegnogramme). 
* * Habit and growth of Cheilanthes : sori 
usually forked. Eugymnogramme and Cerop- 
teris. 
Continuous on transverse veins near midrib 
and veins, towards edge of frond. 53 Brainea. 
On connivcnt transverse veinlets. 
54 Meniscium. 
On veins imperfectly reticulated. 
55 Antrophyum. 
On veins copiously reticulated, and sometimes 
also between them. 59 Hemionitis. 
*j- f -f- Sori in single line. 
Between edge and midrib : fr. dimorphous. 
58 Drymoglossum. 
In margin of grasslike fr. 56 Vittaria. 
Marginal : obi. or roundish, soon becoming con- 
fluent and lin. : fr. matted beneath, edge fre- 
quently inflexed. 50 Nothochl^nA. 
f -f- f f Sori widespread, 60 — 61. 
General over under (rarely both) surfaces. 
60 Achrostichtjm. 
In patches on upper part of undersurface : fert, 
fr. stag-hornlike. 61 Platycerium. 
Sori in separate panicles . 62 Osmunda. 
„ in distichous spikes a t apex of frond. 
64 SchizeA. 
„ in spikes or pinnae, wide scandent climbing. 
68 Lygodium. 
