509 



153*. P. albidulum, Baker ; caud. short, erect ; basal scales linear-subulate, 

 bright-brown ; st. slender, firm, grey, naked, 1^-2 in. ; fr, pendulous, lanceolate, 

 4-8 in. 1., 6-12 lin. br., cut down to rachis into adnate ligulate subacute pinnae 

 1-1 lin. br., the lower lax and gradually reduced ; texture subcoriaceous ; lower 

 side densely white-pruinose ; veins immersed, 10-12-jugate, rarely forked, not 

 reaching the edge ; sori round, superficial, submarginal. Fil. Bras. p. 598. 



Hab. Eio Janeiro, Glaziou, 3579. 



157*. P. liirsutulum, Fee ; caud. short, erect; scales minute, linear, brown ; 

 st. \-l\ in. 1., firm, grey, clothed with minute spreading brown hairs ; />. pen- 

 dulous, lanceolate, 3-6 in. 1., 6-12 lin. br., cut down to rachis into adnate 

 lanceolate blunt pinnce l|-2 lin. br., the lower gradually reduced; texture 

 subcoriaceous ; surfaces dull-green with minute brown pubescence ; veinlets 

 5-6-jugate, forked ; sori large, round, superficial, costular. Fil. Bras. t. 36. 

 fig. 2. P. gradatum, Baler, 'Fil. Bras. p. 513. 



Ilab. Rio Janeiro, Glaziou, Lieut. Carr, W. Longman, 



157*. P. tenuiculum, Fee; st. very short, tufted, naked; fr. oblanceolate, 

 3-6 in. L, f-1 in. br., cut down to rachis into ligulate erecto-patent blunt pinnse 

 l-l lin. br., the lowest decurrent along the black threadlike rachis in a repand 

 wing ; texture subcoriaceous ; surfaces naked, dull-green ; veins 8-12-jugate, 

 simple, erecto-patent, falling far short of the edge ; sori round, slightly im- 

 mersed, medial, 8-10 to central pinnae. P. brevistipes, Mett. Kuhn, Linn. 36. 

 p. 131. P. pendulum var. Gardnerianum, Baker, Fil. Bras. p. 513. 



Hab. West Indies and Brazil. 



168*. P. subnudum, Mett. ; fr. tufted, sessile, oblanceolate, f-1 ft. 1., l-l in. 

 br., cut down to rachis into ligulate blunt entire pinnce 1 lin. br. at midrib, 

 dilated at base, lower gradually reduced to mere auricles ; texture coriaceous ; 

 lower side slightly furfuraceous ; veins obscure, immersed ; sori round, marginal, 

 10-12 to central pinnae. Linn. 1869. p. 30. 



Hab. Society Isles and Tahiti. Habit equally of Davedlia contiqua, of which it may 

 be a mere form with abortive involucres. 



172*. P. patentissimum, Mett. ; rhizome slender, soon denuded ; st. 1 in. 1., 

 naked, distant ; fr. lanceolate, simply pinnate, 6-10 in. 1., 1-2 in. br. ; pinnce 

 numerous, horizontal, close, subrepand, gradually narrowed at tip, lowest 

 deflexed, slightly shorter ; texture membranous ; surfaces quite glabrous ; fertile 

 veins forked ; sori medial, terminal on short anterior branches. Kulm, Linn. 36. 

 p. 134. 



Hab. Mount Chimborazo, Spruce, 5713. Differs from tenuifvliuin by its close piunse 

 and rhizome soon denuded. 



184*. P. Galeottei, Mett. ; rhizome wide-creeping ; scales lanceolate-acuminate, 

 pale-reddish ; st. 1| in. 1. ; fr. elliptic, simply pinnate, 4 in. 1. ; pinnce close, 

 8-jugate, ligulate-obtuse, serrated, lowest deflexed, rather reduced ; texture mem- 

 branous ; both surfaces slightly pubescent ; veins trifurcate ; sori inframedial. 

 Kuhn, Linn. 36. p. 135. 



Hab. Mexico, Galeotti, 6552. 



184*. P. pubescens. Fee ; rhizome wide-creeping, ^ in. thick ; scales linear, ferru- 

 ginous ; st. 3-4 in., like rachis stramineous, finely downy ; fr. oblong-lanceolate, 

 12-15 in. l.,7-8 in. br., simply pinnate ; pinnce 15-20-jugate, close, adnate, minutely 

 . toothed, dilated at base, ligulate, blunt, -f in. br. at middle, lowest deflexed, 



