812 APPENDIX. 21. PLEOCNEMU. 



near scales below. Fronds 55 — 60 c.M. long, deltoid, acuminate, pinnatifid at 

 the apex. Lateral pinnae + 4 — 7 on each side, the lowest much the largest, 

 subdeltoid, long-stalked, pinnate, with the lower pinnulae on the lower side 

 prolonged and again pinnate at the base, the tertiary segments being stalked 

 and deeply pinnatifid; higher pinnae gradually less compound. Ultimate lobes 

 entire or crenulate to toothed. Texture thin, herbaceous or membranaceous; 

 upper surface somewhat hairy towards the margins, lower slightly puberulous ; 

 costae and veins rusty or puberulous; veins anastomosing principally in costal 

 arches, but not rarely also as in Aspidium. Sori copious, commonly sub- 

 marginal and terminal on free veinlets ; indusium orbicular or reniform. 



W^ar. minor: A small and less divided form, divijled 4: as in P. 

 Trimeni, Bedd., or with the tertiary leaflets not deeply pinnatifid. — A plant 

 gathered in Borneo and cultivated in the Buitenzorg gardens, which may be 

 a form of thiSj has the fronds inconspicuously glanduloso-pilose beneath and 

 the costae and veins ± naked. 



Malaya; Formosa, South. China, Ceylon. 



(^) p. profereoides, ». A r. R.} Aspidium profereoidei, Christ, 

 I'hilipp. Jouru., II, 158; Teclaria amhigua, Copel., 1. c. 415, p.p. 



Stipes + 40—75 c.M. long, castaneous, sulcate and sparingly scaly and 

 bristly like the rachis, the scales brown, subulate. Fronds dimorphous, the 

 fertile ones on the longest stipes. Barren fronds more than 50 c.M. long, 

 52 c.M. broad, deltoid-oblong, pinnate. Pinnae distant, horizontally spreading, 

 ± 15 on each side below the acuminate, inciso-lobate apex, sessile, broadly 

 lanceolate, + 18 c.M. long, + 5% c.M. broad, acute, cut ^--way down or 

 more to the costa, the lowest not reduced, not forked. Lobes ± 18 on each 

 side, subeutire, ovate-obtuse, + 1 '/^ c.M. long, + 1 c.M. broad, separated by 

 narrow, obtuse sinuses, the lowest a little larger. Texture flaccido-herbaceous; 

 colour dark-green, opaque; costae furfuraceo-puberulous above; main veins 

 not prominent, pinnate in the lobes; veins forming 1 row of narrow costal 

 areolae, 1 - 5 rows of areolae near the costulae and 5—4 areolae between the 

 coslal ones and the sinuses. Fertile fronds contracted, ± 50 c.M. long, the 

 pinnae distant, + 10 c.M. long, + 2'/^ c.M broad, deeply incised, the lobes 

 linear-lanceolate, falcate, + 4 m.M. broad. Sori round; indusium flaccid, 

 soon corrugate, probably reniform. 



Mindanao. 



