— 21 — 



Drymoglossum Brooksii, v.A.v.K. 



Rhizoma repens, in sicco nigrum, squamis basi peltatis, juvenilibus 

 lanceolatis, acuminatis, pailidis (subalbidis), graciliter denticulatis, adultis 

 ovatis, obtusis, rufis vestitum. Stipites seriati, frondium sterilium + 10 — 12 

 cm. long], glabri (glabrescentes?), frondium fertilium longiores et in fronde 

 sensim transientes. Frondes dimorphae. Frondes steriles coriaceae, glabrae 

 (glabrescentes?), punctulisminutissimis,impressis,saepe nigris copiose munitae, 

 ovatae, + 9 — 10 cm. longae, + 4'/2 cm. latae, acutae vel acuminatae, margine 

 recurvatae, repando-sinuatae et late crenulatae, basi late rotundato-cuneatae et 

 leviter decurrentes; costa supra plana, subtus teres; costulae (main veins) 

 prominentes, ascendentes, marginem fere attingentes ; areolae irreguläres; 

 ven'ulae liberae adsunt. Frondes fertiles angustissime lineares, cum 

 stipite + 35 cm. longae, juveniles 1 mm. latae, adultae forsitan paullo 

 latiores, acutae, integerrimae. Sori longi, utrinque linea paullo elevata 

 inclusi. 



Very distinct, with the barren fronds as in Pleopeltis § Pleuridium and 

 the fertile fronds as in Vittaria § Taeniopsis but apparently without 

 paraphyses, stellate hairs or peltate scales. 



Sumatra {Bengkoelen, Lebong Simpang, G. J. Brooks No. 361 /Sj. 



Drymoglossum metacoelum, v. A. V.R., this Bull., tab. \\;D. rigid- 

 urn, Christ (non Hk.), in Ann. Btz., XX, 129, p. p. 



Rhizoma late repens, squamis brunneis, e basi lata peltataque filiformi- 

 subulatis, basin versus minute denticulatis copiose vestitum. Stipites 

 graciles, glabri, frondium sterilium + '/4 — l'/4 cm., frondium fertilium + 

 7'/2 cm. longi. Frondes dimorphae. Frondes steriles firmiter coriaceae sed 

 non percrassae, glabrae, ovatae vel obovatae, apice rotundatae, margine 

 integerrimae et leviter incrassatae, vix reflexae, basi cordatae ad acuminatae ; 

 costa subflexuosa, apicem frondis non attingens, supra sulcata, subtus 

 prominens; areolae (costales marginalesque exceptae) venulis liberis 

 excurrentibus 1 — 2 munitae. Frondes fertiles lineares, + 5 cm. longae, 

 + IV2 — 2 mm. latae, obtusae, marginibus late et rectangulose reflexis, 

 soris in angulis positis. 



Very peculiar in having the edges of the fertile fronds rectangularly 

 reflexed, the sori placed in the corners, the reflexed portions recurved 

 when dry (and probably also in fresh material when young; fig. d" of the 

 plate) and hiding the sori, flat when boiled (and probably also in fresh 

 material when ripe; fig. d' of the plate). 



Borneo {Liang Gagang, Hallier No. 2942). 



Drymoglossum tetragonum, v. A. V.R., this Bull., tab. Ill ; D. r(g/<iw/n, 

 Christ (non Hk.), in Ann. Btz., XX, 129, p.p. 



