48. POLYPODIUM, §§§§§§§ PHLEBODIUM, §§§§§§§§ OAMPYLONEUEON. 347 



§§§§§§§ Phlebodium, R. Br. Veins forming ample regular areolx, each with 

 two or more distinct free included veinlets, which bear the sori on their united 

 points, the costal series of areoloe being always destitute of sori. Tab, 48. fig.'g. 

 • Sp. 26Jr-266. 



264. P. (Phleb.) nigripes, Hk. ; rhizome stout, the scales black and rigid, with 

 a deciduous membranous ferruginous edge ; st. nearly 1 ft. 1., firm, erect, 

 slightly sCaly ; fr. 1 ft. 1., 6-7 in br., cut down nearly or below quite to the 

 rachis into pinnce J-f in. br., which are slightly crenate towards the bluntish 

 point ; texture subcoriaceous ; under surface furfuraceous ; sori in single rows on 

 each side the midrib. — Hk Sp. 5. p. 17. 



Hab. "Venezuela, Fendler, 247. United by Kuhn with pleieium. 



265. P. (Phleb.) aureum, L. ; rhizome stout, wide-creeping, densely clothed 

 with bright ferruginous linear-subulate soft scales ; St. 1-2 ft. 1., stoiit, erect, 

 naked, glossy ; fr. 3-5 ft. 1., 9-18 in. br., with a long linear-lanceolate terminal 

 lobe, and cut throughout within J-f in. of the rachis into numerous horizontal 

 entire or slightly undulated lateral pinrue 4-9 in. 1., about 1 in. br., with a 

 rounded sinus between ; texture subcoriaceous ; both sides naked, slightly 

 glaucous ; areolm copious, both the fertile and barren ones with free veinlets ; 

 sori irregularly 1-3 serial. — /3, P- areolatum, H. B. K. ; fr. smaller, more 

 coriaceous, very glaucous, the lobes closer, the sori uniserial and barren areoloe 

 with no free veinlets. — P. sporadocarpum, Willd. — y, P. puhinatum, Link ; like 

 /3 in sori and venation, but the frond hardly at all glaucous and the terminal 

 lobe very small. — Hk. Sp. 5. p. 16. 



Hab. Florida and Mexico southward to Brazil, and reported by Dr. Mueller from 

 Australia. — C. ti'ilobata, F^e, ia a dwarf form with only three lobes. A plant from Spruce 

 (Andes of Ecuador, 6240), agreeing with the small forms of this with uniserial sori in 

 habit and texture, has the sori usually terminal on a free veinlet in the costal areolcB, as 

 in typical Gomophlebium, but occasionally a short veinlet is carried from the centre of the 

 one that bears the sorus to the next above it, which springs from the midrib, as in 

 P. ffuatemalense, and as represented in the figure by Mettenius of P. pleurosorum, Kze. ; 

 so that we have then a venation midway between that of GoniophleHwm and Phlehodium 

 proper. 



266. P. (Phleb.) decumanum, Willd. ; rhizome stout, the scales bright-ferru- 

 ginous, soft ; St. 1-2 ft. 1., stout, erect, glossy ; fr. 1-3 ft. L, 1-2 ft. br., cut down 

 nearly, or below ciuite, to the rachis into nearly entire ligulate-oblong pinnae often 

 1 ft. 1., 2-3 in. br. ; texture papyraceous or subcoriaceous ; rachis and both sides 

 naked ; main veins parallel, 2-3 lines apart, with two sets of areolae about 6 deep 

 between them, each containing a sorus terminating 2 or 3 free veinlets. — Hk, 

 Sp. 5. p. 17. C. dictyocallis. Me. 



Hab. Kew Granada and Guiana to. Brazil and Peru. 



§§§§§§§§ Campyloneuron, Presl. Primart/ veins distinct from the midrib to 

 the edge, connected by parallel straight or curved transverse veinlets, the areolm 

 similar, containing 2 or more sori, tlie free veinlets all directed towards the edge. 

 Tab. 48. f. j. Sp. 267-296. 



* Surfaces naked. Sp. 267-275. 



t Fronds simple. Sp. 267-273. 



267- P. (Camp.) angustifolium, Sw. ; rhizome stout, epigseous, clothed with 

 deciduous brown lanceolate scales ; fr. 12-18 in. 1., J in. br., quite entire, the 

 point acute, the lower part narrowed very gradually into a generally short stem ; 

 texture coriaceous ; both sides naked, the edges often revolute ; veins immersed, 

 often obscure ; areola and sori in 1-4 rows between the midrib and edge, the 



