374 4S. PTEKIS. § 0. LITOBROCmA. 



with tho uppor baao froo and truncate op joined with thi iit-tt higbcr pinn^ - 

 the higher pinnae joined at the base by a wing ^/^ — l'/, cM,^^i'oaA. 

 Lower and central pinnae to 25 c.M. long, to 3 c.M. broad„>tte^ fertile ones 

 narrower than the barren, entire, linear, or slightly diktfed towards the acu- 

 minate apex, the higher ones rather suddenlv,sJ3fl5reviated, + */s X shorter, 

 the terminal one nearly as long as or hju^CT than the highest ones. Texture 

 membranaceous, pellucid ; colour„gr^green ; surfaces naked ; rachis and costae 

 dark-purple beneath, yeJliwCm above; costulae and veins distinct; areolae 

 roundish- or elMjgsrt^ubhexagonal. Sori continuous along the sides, inter- 

 rupted at.,,*hBbase and apex of the segments; indusium dark-purple, rigidly 

 mephfSnaceous. 

 ^ — New Gwi w oa i • 



(41) ? Pt. microdictyon, Ji*. (nqt Fee), Spec. Fil., II, 228; 

 Litobrochia microdictyon. Fee, Gen., 138. 



Stipes reddish. Fronds tall, ovate; rachis subtrigonous, channelled. 

 Pinnae short-stalked, alternate, acuminate, pinnatilid. Segments lanceolate, 

 falcate, slightly dilated at the base, obtuse, crenate. Indusium narrow, in- 

 conspicuous, receptaculiform ; the margin thick and black. 



Philippines. 



• (42) Pt. Juughuhnii, Bn., Hk. Bk., Syn. Fil., 170; P/ Iripnrlila, 

 Sw., var. Junghuhtin, Hk., Spec. Fil., II, ^16; Camp(ei-ia J ungkuhnii, Reiiiiv.,}lS. 



Stipes firm, erect, polished, nearly stramineous. Fronds to 60 c.M. long, 

 with several or numerous pinnae on each side, whicli ai-e cut down ^/j — ^j^ 

 of the way to the costa into linear-oblong, falcate, entire lobes + '/s c..M. 

 broad at the base; lowest pinnae whether or not forked at the base, 

 to 25 c.M. long. Texture herbaceous to subcoriaceous ; rachis and both sur- 

 faces naked ; veins fine, anastomosing principally in costal arches (as in Campteria) 

 and in the space between the sinuses and -the costae, sometimes also in the 

 lobes. Sori reaching nearly to the apex of the lobes. — Habit of Pt. quadri- 

 aurita, Retz k biaurita, L. 



Java, Banco. 



(43) PI. llilneana, JBfc., Hk. Bk., Syn. Fil, 170; Pt.triparliln,Sw., 

 var. Milneana, Hk., Spec. Fil., II, 226, tab. CXXXVIII, B. 



Stipe;, jtr^*tf^ erect, polished, yellowish-brown. Fronds 60—90 c.M. long, 

 with numerous pl'v.tae on each side cut down throughout nearly to the costa 



