CLASS XXII. ORDER I. 123 



involucre : fruit-dots roundish, scattered. 55. 5 — 

 hyfierbolea^ (calyxed fern) frond pinnate, leafets 3- 

 parted — ilvensis, frond doubly- pinnatifid, divisions 

 oblong. 



Cheilanthes. Fruit-dots roundish, distinct, 

 situated at the margin of the frond : involucre a 

 roundish membrane formed by turning over the 

 margin of the frond upon the fruit dots, and open- 

 ing inwards. (The margin is always crenate, and 

 each fruit-dot has its own involucre perfectly sepa- 

 rate from the others.) 5 6- 5 — -jestita^ (lip-fern) 

 frond doubly-pinnate -with pinnatifid leafets, hairy 

 both sides. 



B. With cafitules not annulated, 



ScHizAEA. Capsules top-form, striate longitn- 

 dinally and radiately, situated upon the back part of 

 a narrow spike-form appendage of the frond, sur- 

 rounded with or interspersed among, bundles of 

 hairs. (The appendages, bearing the capsules are 

 generally digitate and occupy the summit of the 

 frond.) 55. 5 — tcrtuosa^ (one-sided fern) frond sim- 

 ple, spikes one-way. 



OsMUNDA. Capsules globose, pedicelled, radi- 

 ate-striaie or wrinkled, having a hinge at the join- 

 ing of the two valves, which resembles part of the 

 'jointed ring of annulated ferns : the capsules either 

 occupy the whole lower surface of the frond, or a 

 panicled-raceme. (The parts of the frond occupi- 

 ed by the fruit are always more contracted than the 

 barren parts.) 55. 5 — cin?iamomea, (flowering fern) 

 frond doubly-pinnatifid, fertile ones distinct and pa- 

 nicle-racemed — interru/ita, barren leafets on the 

 frond with the fertile ones, above and below and 

 sometimes among them — spectabiiisi frond doubly- 

 pinnate, leafets sharp-serrate — regaiis, frond bipin- 

 nate, terminating in several racemes, very branch- 

 ing and without hairs. 



