162 POLYSTICIIDM ANGULARE. 



zontal, and whicli towards the apex of the pinnae becomes the 

 auricle, and not divided to the costa; in the lower two thirds of 

 the frond this is stalked, and again auriculate; the apex of the 

 pinnules is much broader. Spinous. Stipes and rachis a rich 

 reddish brown. My thanks are due to the Rev. F. Mules, for 

 fronds. It is not necessary to give an illustration, as a reference 

 to Proliferum Wollastoni will sufficiently describe this Fern, 

 which is in fact a very much divided form of it. 



MiciioMERUM, Moore. (Fig. 139.) — Found near Nettlecombe 

 by Mr. Charles Elworthy. Frond twenty inches in length, of 

 which three is occupied by the stipes; width five inches, 

 except the basal pair of pinna) (which are only three inches 

 across) and at the apex, where it rapidly narrows to an 

 acuminate tip. The pinna? in the centre of the frond are three 

 inches and a half in length, whilst those near the base are only 

 two inches and a half; in the lower portion of the frond the 

 pinna3 are horizontal, whilst on the upper half they are ascending, 

 and this makes the frond equal in width, although unequal in 

 the length of the pinna?. Pinna? opposite below, alternate 

 above, very unequal in length in the upper portion of the 

 frond. Pinnules exceedingly irregular in size and shape, dis- 

 tinctly stalked, approximate, entire, and broad; some large, 

 others small, the larger ones strongly serrate, somewhat ovate, 

 and auriculate, the apex rounded, but having a single spine in 

 the centre; the small ones, which are interspersed irregularly 

 amongst the others, are very various in form, mostly cuneate 

 at the base, fan-shaped, or irregular, the upper half of the 

 firond more irregular. Sori large, and covering the upper two 

 thirds of the frond. Stipes, rachis, and rachidcs densely scaly, 

 the scales hair-like. Colour a rich dark green. My thanks 

 arc due to Mr. C. Elworthy,. of Nettlecombe, for fronds. 



