TAB. CXXIX. 
HYMENOPHYLLUM TORTUOSU M. 
FILICES.—GvnaTrz. Br.  Porvronraczm. Kaulf.  Fririrczs verw. Willd. 
Gr. Cuaza. HYMENOPHYLLUM, Sm.  Sori marginales. — Capsule sessiles, receptaculo 
communi cylindraceo insertz, intra Involucrum bivalve, textura frondis, valvis planis, exte- 
rius liberis. Br. 
HyvMENoPHYLLUM /foríuosum fronde ovata tripinnatifida, laciniis linearibus obtusis glabris den- 
ticulatis marginibus plicatis tortuosis, involucris ovalibus inflatis, ore parvo bilabiato ciliato. 
Trichomanes tortuosum. ..Banks. Herb. (fide Mens.) 
Has. In Nova Zeelandia. 74. Mensies. 
Caudez repens, gracilis, filiformis, hic illic subtomentosus atque radiculosus. 
Frons, circumscriptione, ovata, subacuminata, tripinnatifida: segmentis primariis secundariisque subovatis, laciniis 
linearibus obtusis, nunc bifidis costatis, minute reticulatis, marginibus plicatis tortuosis denticulatis, ubique 
glabris. 
Sori terminales, precipue in laciniis inferioribus segmentorum secundariorum, majusculi, ovales, inflati, utrinque 
portione frondis, subemarginati, sublaxe reticulati, ore contracto, compresso, bilabiato; labiis perbrevibus, 
pulcherrime ciliatis. : 
Receptaculum intra involucrum clausum. : 
Capsule peltatae, annulo completo cinctee. 
Semina parva, subangulata, subpellucida. 
Fig. 1. Portio frondis cum soro. f. 2. Involucrum. f.9. Capsula. f. 4. Semina:—magn. auct. 
In the structure of the frond, especially in the denticulated and twisted or plicate margin, the 
present species approaches near to the 4. dichotomum and dentatum of Cavanilles, and the 2. den- 
ficulatum of Swartz: but in none of those does the involucrum appear to be, as in this species, 
furnished with a remarkably small mouth (so that it looks like that of many Jungermannia), and 
with very short, distinctly ciliated lips. 
