among Algae. In the genus Acrostalagmus the sporidia grow 

 from the apex of the peduncle which protrudes into the cyst, so 

 that that genus varies somewhat from the character of the Order, 

 in the absence of free formation of the fruit in a cyst. Something 

 similar occurs in Ascotricha. Enough has, perhaps, been said to 

 show tlj9,t these low types of fungi possess some interest, and 

 exhibit the wonderful variety of form and structure made use of 

 by nature in her work, affording an inexhaustible field of research 

 to the Botanist and Microscopist. 



We will now proceed with a list of the species belonging to the 

 Orders at present treated of, which have occurred in our 

 District, and which carries us through its mycology according to 

 the arrangement adopted by Fries. 



ORDER 26. SPH^RIACEI. 



Perithecia carbonaceous or membranaceous, sometimes confluent 

 with the stroma, pierced at the apex, and mostly papillate. 

 Hymenium diffluent. 



GENUS 288. CORDYCEPS.* Fr. 



Stroma vertical, fleshy. Fructifying head distinct, hyaline or 

 coloured. Sporidia repeatedly divided, submoniliform. 

 Cordyceps ophioglossoides Fr. Spye Park, September, 1843, 

 parasitic on Elaphomyces muricatus. 



C entomorrhiza Fr. Hartham Park, April, 1843, on 



some caterpillar buried in the ground in fir plantations. 



C militaris Fr. Hanham Woods, October, 1853. 



C myrmecophila Cesati. Leigh Woods, Bristol, March, 



1879. 



C microcephala Tul. Leigh Wood, July, 1878. C. 



Bucknall. 



C purpurea Fr. Eaised from Ergot on grasses. 



Batheaston, June, 1854. 



• Cordyceps, from Kordule, a club, and cephalos, a head 



