— 341 



4. T. bilabiatum Nees et Bl. ; G. Chr. Ind. 636. T. Filicula Christ, I.e. 

 Differs from T. bipunetatum by its short-stalked, broad, deltoid 



fronds and by the presence of short spurious veins in the cell-tissue 

 within the marginal spurious vein. The form collected is small, with few 

 spurious veins. 



Klong Son, epiphytic on trees (no. 768). 



Area: Malaya, Melanesia. 



5. T. siamense Christ, Î. c. 

 Klong Munsé (no. 401). 



Christ incorrectly makes this a subspecies of T. rigidum Sw. ; it 

 resembles that species by its tufted fronds, rigid texture and brown 

 colour, but otherwise it is very different, e. g. its rachis being distinctly 

 winged throughout. Christ's description is somewhat inadequate. The 

 lobes are not finely denticulate, but entire, the sori not 

 free, but fully immersed to the mouth in an anterior tertiary lobe, 

 leaving only a narrow margin of the lobe free as a wing to the sorus. 

 The erect, short, branched rhizome is clothed at the growing apex with 

 numerous dark-brown, cylindrical, articulated hairs. 



The affinity of this species is probably with T. hispidulum Mett. 

 from Malacca and Borneo. 



To this species probably belong some small tufts of a little young 

 fern found in the jungle on rocks near Klong Munsé (sine num.). It was 

 determined by Christ as T. nanum v. d. B., Christ, 1. c. --=-- T. Kurzii 

 Bedd., C. Chr. Ind. 643, but this, belonging to the subgenus Hemiphlebium , 

 has nothing to do with our plant. Unfortunately, the small plants are all 

 sterile, but in many characters: the tufted fronds, the hairs, the colour and 

 texture, etc., they resemble very much T. siamense, of which I therefore 

 consider them to be young plants. 



(T. rigidum Sw. ; Christ, 1. c. Specimens not found in the collection, 

 the species must be excluded.) 



6. Cibotium barometz (L.) J. Sm. ; Christ, 1. c. Ill, — (no. 619 e). 



7. Alsophila glabra (Bl.) Hook.; C. Chr. Ind. 43. 



Klong Munsé, river bed in the jungle (no. 594 d); a single sterile 

 pinna only collected. 



Area: Tropical Asia. 



8. Alsophila kohchangensis n. sp. 



A. podophylla Christ, 1. c. Ill (non Hook). 



A. ex affinitate A. glabrae (Bl.) Hook, vel subspecies hujus speciei 

 caudice epigaeo breve vel subnullo. Stipite atropurpureo nitido, vix 

 10 cm. longo, 5 — 7 mm. crasso, superne late canaliculato, ad basin 

 sqüamis luteo-brunneis parvis lanceolato-acuminatis non dense obtecto, 

 sursum squamis sensim paucioribus et minoribus, anguste linearibus in- 

 structo, pilis destituto, non muricato. Lamina ambitu late lanceolata vel 

 elliptico-lanceolata, e medio utrinque attenuata, in siccitate brunnea (rachi 

 atropurpurea), costis pinnarum supra ferrugineo-crispato-hirtulis exceptis 

 omnino glabra, bipinnatifida vel subbipinnata. Finnis supremis late adnatis, 

 sursum decurrentibus confluentibusque, subintegris versus apicem abrupte 



