60b. DICTTOEtKHiS. § 1. ARCYPTEftlS. 515 



^.^. Lateral pinnae more numerous. (8) D. macrodonta. 



$.$.$. Fronds at least 2-pinnate. Venation ± as in Pleocnemia. 



(9) D. ferruginea. 

 i.a,a. Sort scattered irregularly. (*) 



±. Fronds simple, lobed, 3-partite or pinnatifid. 



3. Fronds under 30 cm. long, or longer but then entire. 



3. Under surface densely hairy; fronds simple. (10) D. vitis. 

 3.3. Under surface naked;, fronds at best ternate. 



A. Stipes naked. (11) D. labrusca. 



S.^. Stipes minutely fibrillose. (12) D. lamoensis. 



9.9. Fronds more than 80 cm. long, not entire. 



$. Fronds ternate. (13) D. Hancockii. 



$.§. Fronds deeply pinnalifid. 



i^. Lobes + 4-5 c.M. broad. (1^^) D. heterosora. 



>K.5)<. Lobes ± iO c.M. broad. (146) D. Bolsteri. 



l.±. Fronds pinnate; pinnae entire, crenate, lobed or pinnatifid, the lowest 

 pinnatifid or forked at the base. 

 a. Pinnae paucijugate. 



p. Lateral pinnae + 2-jugate. (15) D. pentaphylla. 



p.p. Lateral pinnae + 6-jugate. 



y. Lowest pinnae 2-partite. (16) D. Whitfordi. 



7.7. Lowest pinnae 3-partite. (17) D. polycarpa. 



«.«. Pinnae multijugate. (18) D. irregularis. 



(1) D. pferoides, JPf., Tent. Pterid., 194, tab. Vin,fig. 6& 13; PAe- 

 opteris Brongniarlii, Melt., Farng., IV, Phegop. k Aspid., 31; Aspidium Brong- 

 iartii; Diets, Copel., Polypod. Philipp., 35; C. Chr., Ind. Fil.; Polypodium 

 'rongniartii, Bory, Hk. Bk., Syn. Fil., 318; Tectaria irregularis, Cupel., var. 

 'rongniartii, Copel., Philipp. Journ., II, 417; P. pteroides, Pr., (oldest name). 



Fronds 60 — 90 c.M. long, 30—45 c.M. broad, the apex pinnatifid with 

 eep, lanceolate, repand lobes; below this numerous distinct pinnae, the lowest 

 5 — 25 c.M. long, lanceolate, cut */4 of the way down throughout into acute, 

 iibentire, lanceolate lobes 1— S'/j c.M. long, '/i — 1 c.M. broad. Texture sub- 

 oriaceous; areolae copious, with few free veinlets. Sori rather small and 

 onfined to the margin of the lobes. 



Malaya. 



(*) See also D. Bryantl, v. A. v. R. 

 FaicES. B3 



