38. HYPOLEPIS. S 2. EXJHYPOLEPIS. 241 



1.1^ Fronds rather large, at least 4-pinnatificl. 



2. Indusinm indistinct, tooth-like, or the sort protected by the rectirved 

 margin of the ultimate lobules. (2) H. punctata. 



2.3. Indusium distinct, not tooth-like. 

 3. No rctmpant species. 

 A. Indusium single. 



S. Ultimate segments toothed or shalloicly pinnatifid 

 (deeply lobate-dentate). 



(3) H. tenuifolia. 

 3,5. Ultimate segments entire or crenate. 



(4) H. Bamleriana. 



4.dE. Indusium double. (5) H. bivalvis. 



3.3. Rampant species. (6) H. papuana. 



(2) U. iiiiiietaia, Mett. (not Bedd.), in Kuhn, Fil. Afric, 120; 

 Phegopteris punrJata, Mett., v. A. v. R., Mai. Ferns. 495, includ. synonyms ; 

 — var. rugulosa; H. rugulosa, J. Sm.; Ph. rugulosa, Mett. 



Fronds more or less copiously flljrilloso-pilose on the rachises, costae, 

 costulae and veins, 50 — 350 cm. long and about half as broad. 



Forma typica: Sori few, in or near the axils of the lower lobules of 

 the segments, when young protected by a very minute, recurved, axillary, 

 tooth-like indusium only. 



War. I'Hguloisa: Sori generally 1 to each ultimate lobule, so 

 copious that they frequently cover the whole under surface or the 

 segments, when young protected by the recurved lobule and often also 

 by an axillary tooth. 



(4) U. ItaiMleriaua, Ust., in Fed., Rep., X, 325. 



Fronds large, 5-pinnatifid. Pinnae petiolulate, lanceolate, ± 50 cm, 

 long, 35 cm. broad, shortly acuminate, produced on the lower side. 

 Secondary and tertiary segments horizontally spreading, petiolate, 

 lanceolate, acuminate, nearly equal-sided. Leaflets sessile, rather narrowly 

 adnate at the base, linear, obtuse, deeply pinnatifid with ± 4 — 6 oblique, 

 ovate, acute, subentire or subcrenulate lobes on a side. Texture thinly 

 herbaceous ; surfaces sparingly hairy ; colour olive-green ; rachises orange- 

 brown, glossy, hirsute above, naked or sparingly hairy beneath, the 

 Ferns and Feen Allies. 16 



