26 



THE FLORAL WORLD AND GARDEN GUIDE. 



never suffers if kept at a temperature 

 not lower than 40°, and at the same time 

 guarded against damp, which, when 

 the temperature is low, causes mildew 



FOLTPODIUM CKSNATU1T. 



and damping off at the base of the 

 fronds. 



It has been frequently referred to 

 as a good case fern in former issues 

 of the Flobal Woeld. Of its various 

 synonymes the following are most 

 in use : — Cyrtophlebium phyllitidis 

 (Smith, Moore), and Campyloneurum 

 phyllitidis (Presl., Fee). 



Poli/podium crenatum (Kunze, 

 Wildenow). This hitherto scarce fern 

 is now plentiful, and having through 

 the kindness of Mr. Sim been 

 enabled to make acquaintance 

 with it and observe its habits, 

 I am enabled to make a note on 

 its cultivation. It is exceedingly 

 pretty, and quite distinct in the 

 class to which it belongs. The 

 fronds rise from a creeping 

 rhizoma; they are once di- 

 vided, the pinnas are oblong- 

 ovate, membranous, crenate on 

 the edge ; colour bright green, 

 overspread on the underside 

 with cinnamon-coloured sori, 

 which are very conspicuous and 

 handsome. The surface is as 

 it were tessellated and ex- 

 tremely beautiful. This is truly 

 " an evergreen stove species," 

 yet it may be grown, and that 

 well, in a warm greenhouse, 

 and should in such case be in 

 a pot. In potting let there 

 be one-third depth of drain- 

 age material, then a mixture 

 of turfy peat, cocoa-nut fibre, 

 and pounded brick to fill up. 

 Pot loosely at first, keeping 

 the rhizome well above the 

 surface : then spread on the 

 surface of the soil about an 

 inch depth of brick and tile, 

 pounded to the size of peas, 

 and press the roots firm with 

 the rhizome on the surface. 

 In a warm shady part of the 

 greenhouse it will be found 

 to do well all the summer, 

 and if it can be placed in a 

 cool part of the stove all winter it 

 will be safe, but it may, nevertheless, 

 be kept with moderate care in any 

 greenhouse that is kept at an average 

 of 45° all winter, being much more 

 accommodating than hitherto repre- 

 sented. 



Shirley Hibbeep. 



