HYMENOPHYLL UM. 



321 



to H. ahruptum and also to H. tenellum ; but while the leaflets, instead of 

 being more or less divided, are quite simple, the main racliis (stalk of the 

 leafy portion) is scarcely winged below. This species is a native of 

 Pic du Mont Mu, in New Caledonia, where it has been collected by 

 Deplanche. — Hooker^ Synopsis Filicum, p. 57. 



H. Moorei— Moor'-e-i (Ch. Moore's), Baker. 



This curious little species, native of Lord Howe's Island, is of very 

 small dimensions, its singular fronds, produced from a wide- creeping 

 rhizome (prostrate stem), seldom measuring more than lin. in height including 

 the stalks on which they are borne ; they are rounded in their upper and 

 wedge-shaped in their lower half, and somewhat fan- shaped. The sori (spore 

 masses), one to three to a frond, rarely terminal, are sunk in the frond at 

 tlieir base. — Hooker, Synopsis Filicum, p. 464. 



H. multifidum — mul-tif-id-um (much-cleft), Simrtz. 



A very elegant species, native of New Zealand and the Pacific Islands. 

 The broadly-spear-shaped fronds, 2in. to 6m. long and lin. to oin. broad, 

 are borne on wiry, naked stalks Sin. to 4in. long, their main rachis (stalk 

 of the leafy portion) being winged above and wingless below ; they are 

 tripinnatifid (three times divided nearly to the midrib), with narrow 

 ultimate segments. The sori (spore masses), two to twelve to a leaflet, are 

 terminal on the lateral segments of the upper leaflets on both sides, and 

 are furnished with an egg-shaped involucre (covering), the valves of which 

 are divided not more than half-way down and entire. In exposed situations 

 the fronds are much drawn together and the segments are recurved. — Hooker, 

 Species Filicum, i., p. 98. Hooker and Greville, Icones Filicum, t. 167. 



H. myriocarpum — my-ri-oc-ar'-pum (many-fruited). Hooker. 



This species, native of Mexico and southward to the Andes of Peru, has 

 pendent, broadly -spear -shaped fronds Sin. to 12in. long, 2in. to Sin. broad, 

 and borne on stalks 2in. to Sin. long and slightly winged above ; they are 

 of a flaccid habit and three times di-v-ided nearly to the midrib, which is 

 furnished with a narrow wing throughout. The very numerous sori (spore 

 masses) are terminal and lateral on the segments on both sides ; they are 



VOL. II. Y 



