DIXON I A. 



60? 



The most obvious difference is, that they do not coalesce, at 

 least regularly with the margin. The stomata are somewhat 

 peculiar, occupying a roundish areola to the upper margin of 

 which they are attached, the two component cells are filled with 

 greenish opaquish matter, and the line indicating their approxi- 

 mation is continued like a small bridge over the orifice. 



The capsules are mixed up with a number cellular simple 

 processes of a more red colour than the rings of the capsules 

 themselves. The stomata must be examined again with bet- 

 ter lenses than I have with me. //. Ass. 394. 



Dicksonia assamica PI. CXXXVI. Fig. II. 



Filix, surculo obsoleto nec exserto, elegans, stipite supra 

 planiuscule, laevi brunneo, sublucido. Fronde gigantea, 10, 

 12 pedali apicem versus nutanta, 3 pinnata, rachibus pinnarum 

 junioribus furfuraceis, dorso planiusculo velutino. Pinnis (out- 

 line of) oblongo-lanceolatis, pinnulis linearibus acuminatis 

 supra saturate viridibus glabris, subtus glaucis, secus nervum 

 medium, et secus nervum medium laciniarum arachnoideis, 

 arachna venulis tertiariis informa punctularum parce super- 

 jecta, laciniis oblongo ovatis, acutis, directione quoad nervum 

 pinnae medium paulo obliquis, crenato-serratis, basi confluen- 

 tibus, acumine pinnae tantum grosse dentato laeviusculo. 



Venatio vel secondaria primariave cujus laciniae ad apicem 

 rect. secus axis ejus currit, ibidemque desinit, cursu tertiarias 

 quae saepius, simplices aliquando bifurcatae, emittens, hae ad 

 apicem cujusque serraturae curvatim currunt ibidemque desi- 

 nunt. Sinus serraturarum semper diaphanus ! ut etiam sinus 

 laciniarum. 



Sori his impositi vel par singulum, binumve basim laciniarum 

 versus occupantes, marginales obliquii, transversim oblongi, 

 linea curvata extrorsum notati. 



Indusium bivalve, transverse secus lineam curvata, dehis- 

 cens, valvuli externi quasi foliacei, et quasi e margine frondis 

 incurva format, magis magi^que convexa interior minus con- 



