22 



FLORA OE NEW ZEALAND. 



[Filices. 



6. Adiantum fuhum, Baoul; froncle deltoidea bi-tripinnata, pinnis linearibus lineari-oblongisve, 

 pmnulis breve stipitatis cultratis lineari-oblongis cliartaceis superne pilosis pilis atria sparsis v. glabemmis, 

 rnargine superiore et exteriore obtuso crenato-dentato, involucris majusculis sinubus pinnulse sitis rotun- 

 dato-reniformibas sinu angusto profundo, rachi supra pilis fulvis substrigosa, stipite ebenea basi scabra 

 superne sublsevi.— Baoul, Choix cle Plantes,p. 9. Hook. Sp. Ml. v. 2. p. 52. t. 85 A. 



Hab. Northern and Middle Islands; from the Bay of Islands to Banks' Peninsula, Baoul, Colenso, 

 Sinclair, etc. 



I have gathered many specimens of Adiantum that fall under the above description, but consider the species a 

 very doubtful one ; its habit, general appearance, and structure of the involucre so closely resemble A. Cunninghamn, 

 that the two plants may easily be mistaken. This differs from A. Cunninghamn in the strigose pubescence of the 

 rachis, in the less glaucous, coarser, sometimes hairy pinnules, which are usually more oblong and lobed. Other 

 specimens, with subpedate fronds and hairy pinnules, resemble A. hispidulum, but the involucres are smaller and 

 plant less hispid; others resemble A. affine still more closely, and are to be distinguished by the less membranous 

 pinnules and smaller involucres. 



Gen. XL HYPOLEPIS, Bernh. 



Sori punctiformes, marginales, distinct!. Involucrum apice e venula ortum, lobulec frondis recurvi 

 formatum, coriaceum v. submembranaceurn. 



It is difficult to distinguish this genus by technical characters of the fructification from Adiantum, from which 

 it is widelv different in habit and general appearance. The sori are small, placed on the margins of the pinnules, 

 in a sinus," and are covered with a small reflexed lobe, which is never so membranous as in Adiantum, but is green 

 and herbaceous. Sometimes the reflexion of the pinnule's margin is so slight that the sorus is really naked, and 

 then I cannot distinguish the genus from Polypodium, or the species II. tenuifolia from P. rugulosum, Lab. (Name 

 from inro, beneath, and \em<s, a scale.) 



1. Hypolepis tenuifolia, Bernh. ; fronde ampla glanduloso-pilosa v. glabrata submembranacea quadri- 

 pinnata, pinnis primariis ovatis v. ovato-oblongis acuminatis, secundariis tertiariisque lanceolatis, pinnulis 

 sessilibus lineari-oblongis obtusis lobatis pinnatifidis inferioribus soriferis, lobis oblongis obtusis crenato- 

 dentatis subintegerrimisvc basin versus soriferis, involucre reniformi, costa rachibusque glanduloso-pilosis, 

 stipite brunneo puberulo et scaberulo, rhizomate valido longe repente squamosa.— Bernhardt in Schrad. 

 Journ. Fred, Tent. Pterid. t. 6. /. 29. Hook. Sp. MX. v. 2. p. 60. t. 19 A. Cheilanthes arborescens, 

 Swartz C. pellucida, Colenso, Tasm. Phil. Jourk. C. ambigua, A. Rich. Flor. A. Cwnn. Prodr. 

 Lonchites tenuifolia, Font. Prodr. C. Dicksonioides, Mull. Prodr. Flor. Ins. Norf. Kunze, Farnk. 



jo. 13. t. 8. 



Hab. Northern Island, Colenso, Sinclair, etc. (Cultivated in England.) 



A tall handsome, spreading Eern, 2-5 feet high, found in Australia, Tasmania, the Pacific and Philippine 

 Islands the' West Indies, and, if the same with Polypodium rugulosum, as I very much suspect, it is found in all 

 warm and many temperate parts of the globe. New Zealand specimens vary a good deal in the colour, hairiness, 

 and membranous or coriaceous consistence of the fronds, as they grow in more shaded or open loeahties -JW 

 sometimes 2 feet broad, deltoid, tri-quadripinnate ; primary pirnise or branches spreading; secondary and tertiary 

 narrow, oblong, acuminate; ultimate, or pinnules, sessile, linear-oblong, l|-2 inches long, deeply pmnatifid. Lobes 

 linear-oblong, blunt, bluntly erenate. Sori generally two or three on each side of the lobe, covered by an involucre 

 formed of a portion of the recurved margin of each crenature. Costa hairy ; rachis yellow-brown glandular and 

 hairy Stipes stout, often viscid, glandular, hairy and rough.-There is a New Zealand variety of this species with 

 nearly glabrous rachis and stipes, more distant and acuminate secondary and tertiary puma,, narrower pinnules, 



