﻿700 73. DRYNARIA. § 2. PORONEMA. 



areolae copious; free vemlets few. Sori immersed, in 1 row + medial be- 

 tween the midribs and the edge. 



Trop. Asia, Australia ^ Polynesia. 



$ 5. THAYERIA. 



if. Cup-leaves deeply lobed or pinnalifid. (7) D. nectarifera. 



(8) D. cornucopia. 

 %*%. Cup-leaves slightly undulate, subentire. (9) D. involuta. 



^7) O. nectarifera, lUels, in Engl, k Prantl, Nat. Pfl.Fam., I*, 

 330; Polypodium necfariferum, Bk., Becc, Mai., II, 247, tab, LXV; Thayeria 

 nectarifera, Copel., Philipp. Journ., I, Suppl., 166. 



Rhizome stout, woody, tortuose, scaly towards the extremity, the scales 

 adpressed. orbicular, peltate. Cup-leaves ovate, pinnatifid, induplicate, the lobes 

 oblong, obtuse. Fertile fronds stipitate, oblong-lanceolate, 45—60 c.M. long, 

 simply pinnate. Pinnae numerous, the lower ones adnate, lanceolate, covered be- 

 neath with copious dot-like glands; upper pinnae narrowed or contracted, 

 linear, torulose, soriferous, + similar to those of Polypodium Meyenianum, Hk. 



New Guinea, ? Luzon. 



(«) ». cornucopia, 'v. a ». je., Bull. D6p. Agr. I. N., d908,XXl, 

 8; Thayeria cornucopia, Copel., Philipp. Journ., I, Suppl., 165, tab. XXVIII. 



Rhizome wide-creeping, scandent, often descendent, clothed with small, 

 lanceolate, subpeltate, acuminate, adpressed scales. Cup-leaves to 50 c.M. long, 

 cornet-shaped, i. e. with the large basal lobes convolute and overlapping so 

 as to form an oblique, huraus-coUecting cup placed on a horizontal branch of 

 the rhizome 1—6 c.M. long, which passes through the sinus between the lobes 

 and ends in the base of the cornet ; lower part scariose, brown, upper green, 

 deeply pinnatilid, the segments deciduous. — Fertile fronds unknown. 



Mindanao. 



• (9) O. involuta, ». A. ». «., Bull. D^p. Agr. I. N., d908, XXI. 

 8, tab. IV. 



Rhizome long, woody, ascending or climbing, flexuose, densely scaly; scales 

 suberose, the base fuscous, broadly ovate, peltate, the margin paler, scariose, 



