374 



MOSSES AND FERNS 



CHAP. 



(Fig. 193, C), and Atkinson shows much the same appearance 

 in C. Chaniissoi. In the former species the stalk is long and 

 composed of three rows of cells, as in typical Polypodiaceai. 

 With the sporangia in this species are also numerous long 

 paraphyses (Fig. 193, D). 



The very interesting genus Matonia is represented by the 

 two species M. pectinata and M. sannentosa, the latter but 

 recently discovered. Both belong to the Malayan Archipelago, 



Fig. 193. — Cibotmm Mcnziesii (Kaulf)- A, Pinnule with the sori {£), X3; B, a single sorus 

 showing the two-valved indusium, X9; C, a single sporangium, x 80 ; r, the annulus ; D, a 

 paraphysis, X 80. 



and are very restricted in their range. From a study of the 

 latter species Baker ^ concludes that the genus is the type of 

 a special family intermediate between the Gleicheniaceae and 

 Cyatheaceae. The indusium is umbrella-shaped, and firm in 

 texture, and the sporangia are arranged in a circle about its 

 base. 



Zeiller,- from a comparison of Matonia with the fossil genus 



1 Baker (3). "^ Zeiller (i). 



