PL end. cr. 
1. FILICES. 1. Osmunda, 
3 
e. Invol. opening towards the rib ; sori linear , 
parallel to the midrib. Blechnideoe, f. 
Invol . scariose, submarginal . . Blechnum. 9. 
Invol. scariose, marginal Stegania. 10. 
f. Invol. marginal, scariose , originating from the inflected up~ 
per membrane of the frond, opening inwards. Pteridece. g. 
Sori linear, marginal, contiguous Pteris. 11. 
Sori dot-like Adiantum. 12. 
g. Invol. more or less cupshape, superficial, 
containing the sori . Cyathece, h. 
Sori dorsal ; invol. peltate, margin fringed ; 
receptacle none .... Woodsia. IS. 
Sori marginal; invol. pitcher-shape, one- leafed; 
receptacle cylindrical . . Trichomanes. 14. 
Sori marginal ; invol. pitcher-shape, two-leaved ; 
receptacle cylindrical IIymenophyllum. 15. 
3. Capsule without an elastic ring, or strive. 
Sori in a compound spike, opening paral- 
lelly to their insertion. Bostrichice, i. . . Bostrichium. 16. 
Sori in a subarticulate distichous spike, 
opening transversely. Ophioglossce, k. Ophioglossum. 17. 
A. Osmund ace^:. Capsules very numerous, pedicelled, 
elegantly striated, generally radiated at top; when magnified 
finely veined, and pellucid. 
Gen. I. 1. OSMUNDA. Lobel and Pena. Flowerfern . 
Capsule footstalked, globular, semi-bivalve, opening at 
the striae, situated either on the back of the unaltered frond, 
or surrounding the frond contracted into the form of a 
panicle. — Root fleshy ; Frond many tufted, pinnate, smooth. 
Osmunda regal is. Royal Flowerfern . 
Frond bipinnate ; Leaflets lanceolate, edge scarcely 
notched, lower ones opposite, sub-auricled at the base; 
Panicle bipinnate, fructiferous, at the apex of the frond. 
Filix fcEin. q. F. ramosa non dentata florida C. Bauhin, Raii SynA2&, 4. 
F. florida seu Osmut da reg^l is, Ger. em. 113! ; Park. 1038. 
Osmunda regalis, Lin. S. P. 1521. 
Water fern. Osmund royal. Royal moonwort. Flowering fern. 
Watery places in woods; perennial; June and July. 
& incisa. Lower leaflets, 2 or 3 cut. 
B 2 
