OF FERNS FROM NORTH BORNEO. 223 



22. 11. javanicum:, Spreng. 



n. Tricuomakes saxifragoides, Fresh Cannot, I tliink, be 

 separated specifically from T. parvidum. 



+ 



16. (61*) T. HosEr, Balcer^ n. sp. ; rhizomate filiformi late 

 repente, stipite brevi nudo baud alato, frondibus parvia ovato- 

 rhomboideis tripianatis, pinnis inferioribus maximis deltoideis 

 basi postice cuiieato-truncatis, segmentis ultimis linearibua uni- 



nerviis inlegris ascendentibus, soris terminalibus solitariis, 

 involucro infuudibulari angusto alato labiis 2 parvis semiorbleu- 

 laribus prsedito, receptaculo breviter exserto. (Plate XII.) 



A small finely-cut species allied to the Philippine T. brevipes^ 

 Baker, and T, Smifhii, Hook., and Polynesian T. fe?iuej Brock. 

 Fronds about 2 inches long, | inch stipe included, erect, spaced 

 out upon the long filiform rhizome. Final one-nerved entire 

 segments about 5 of aline broad, not more than g-^ in. long. 

 Involucre ^ in. long, narrowly winged on both sides nearly or 



w 



quite to the top of the tube. 



25. T. ATAXTMUAT, Blicvie. 



23. T. F(ENicuLACErM:, Bory, Matang, 



12. (18*) DiCKsoyiA (§ Patakia) aitpla, BaJce)\ n. sp. ; rhi- 

 zomate repente paleaceo, frondibus amplis deltoideis glabris tri- 

 pinnatis, pinnis oblongo-lanceolatis, pinnulis lanceolatis multi- 

 jugis acuminatis ad costam vel alam angustam pinnatipartitis, 

 segmentis ultimis adnatis oblongis parallelis contiguis, venis 

 copiose pinnatis venulis 6-S-jugis erecto-patentibus, soris parvis 

 globosis marginalibus incurvatis, involucri valva exteriori majori 

 glabra semiorbiculari. 



A very distinct species, allied to the Tropical-American _D. 

 adiantoides^ H. B. K. Ehizome epigaeous, creeping, as thick as a 

 man's finger, clothed with dark paleae. Fronds 4 feet or more 

 long, moderately firm in texture. Ehachis brown, unarmed, 

 pubescent only down the channelled face. Lower pinna? the 

 largest, 2-3 feet long, nearly a foot br*^ ad. Tertiary segments 

 \ in. broad. Sori placed on the edge of the tertiary segments, 

 principally near the base. Veins 7-8 on a side in the tertiary 

 segments, the lower forked, the upper simple. 



11. (23*) D. (§Patania) gomphophtlla, Baker^ n. sp. ; 



frondibus amplis glabris deltoideis decompositis, rachibus iri- 

 ermibus, pinnis infimis maximis deltoideis iasequilateralibus, 



