CHAPTER XII. 



SADLERIA, Kaulfuss. 



(Sad-ler'-i-a.) 



N" Hooker's " Synopsis Filicum " Sadleria forms Genus 35, 

 occupying a position between Blechnum and Doodia. This 

 genus, wMch was named ia honour of Joseph Sadler, 

 Professor of Botany at Perth, comprises but two species of 

 stove Ferns of arborescent habit, only one of which — S. 

 cyatheoides — has yet been introduced in our gardens. This is a very 

 handsome plant, combining the habit of a small Cyathea with the fructifi- 

 cation of a Blechnum. The distinguishing character of the genus resides in 

 the disposition of the sori (spore masses), which form a continuous line 

 close to the midrib on both sides, where they are placed on an elevated 

 receptacle and covered with a narrow involucre of a somewhat leathery 

 texture, at first wrapped over the spore masses, but afterwards spreading. 

 The conspicuous veins in the leafits form a series of distinct costal arches. 



Culture. 



S. cyatheoides is a vigorous grower, requiring no special care, and thriving 

 under warm treatment, in a mixture of two parts peat, one part loam, and 

 one part silver sand,' with abundance of moisture at all times of the year. 

 It is usually propagated by means of spores, received from its native habitats, 

 none of the cultivated plants having as yet shown signs of fructification. 



