602 



FILICES. 



the outer surface of the lobes of the young pinnae are covered 

 with scales, which have or have not glandular terminations or 

 appendages. 



Under these occur nearly simple elongated hairs, with glan- 

 dular terminations. I think but am not sure, that these 

 are confined to the surface of the lobes, and do not arise from 

 the costfe. The inner surface however, is that which presents 

 these bodies of the largest size, they are about 4 times 

 as large as the longer ones on the outside, and are more 

 filled with the grumous matter, the granules of which are not 

 definable by my J inch simple lens, an incurvation of the 

 longer ones, is generally apparent. 



The outer squamiform ones are much like the ramenta so 

 called, they are like these, toothed on the margins, the teeth 

 being bifid, i. e. the two component cells are more or less di- 

 varicate at the apex, the union of the cells especially of these 

 often present an appearance of a marked intercellular pas- 

 sage. 



The ramenta asssume the usual black brown colour ; in 

 those of the frond high up, the coloration is often con- 

 fined to the marginal series of cells, and is due to expo- 

 sure to the air ; at first the colour begins at the first parts 

 exposed. 



This Fern therefore presents no greater peculiarity than the 

 limiting of the most capitate hairs, to the inner face of the 

 coil. 



The perfection of the foviliform contents, is in proportion 

 to the size of the cell j in the earlier stages it is much less 

 opaque, nor is the cell so turgid. 



Does this correspond with the development of glandular 

 hairs ? 



The ramenta in this are confined to all parts of the stipes 

 except the inner surface, this is covered with minute, white 

 fluff consisting of irregular ramentiform un coloured scales, 

 and simple glandular headed hairs, which have not undergone 

 much change, even when the stipes is a foot in height, and 

 they are taken near its base. 



