Pileate and Clavate Tribes of Hymenomycetous Fungi. 97 



We cannot doubt the very close relation of the cupulate 

 and scleromycous groups. The Scleromycetes evidently pass 

 into the Perisporiacei by means of some of those epiphyllous 

 species whose asci are reduced to the form of sporidia, and 

 the sporidia in consequence mere sporules. This makes 

 way through Perisporium for a new form of free asci, the so- 

 called sporidia of Erysiphe. The transition from thence to 

 Angiogastres is very easy through Polyangium. The Carpo- 

 boli, as Fries has admirably pointed out, are Perisporia with 

 avolva. The circle returns to Mitrati through Tuber and 

 Rhizina. The Hymenomycetous and Uterine circles are con- 

 nected by Tremella and Tuber. I have reason to think 

 that this will appear much more evident than it does at first 

 sight, when the structure of Tremella shall have been more 

 perfectly studied. 



The intimate structure of the Phalloid Fungi, as I hope to 

 show at some future opportunity, is exactly that of Tricho- 

 gastres, as appears from the examination of both before ma- 

 turity. Indeed the transition from them through Battarea 

 and Geastrum is far from abrupt. 



I am inclined then to think that the typical and subtypical 

 groups of the Gasteromycetes consist of Trichogastres and 

 Phalloidei; two of the aberrant groups being Myxogastres 

 and Trichodermacei. 



The phalloid group is connected with Trichodermacei by 

 Spadonia and the curious fungus figure by Battara, tab. 40, 

 A — E, a Phallus, without a volva. The gasteromycous circle 

 is evidently connected with the uterine by JEgerita. 



The group Myxogastres, as Fries remarks, differ in their 

 singular vegetation * from all other Fungi, and have but few 

 and remote analogies. The old notion of their connexion with 

 Hypodermii is, I believe, correct, and by means of these they 

 pass either into Coniomycetes, or through them to Trichoder- 

 macei. At present, however, I dare not venture to remove 

 them from Coniomycetes. The fifth group, therefore, is left 

 blank in the diagram. 



I do not attempt to indicate the groups of Hyphomycetes 



* It is curious that spiral vessels, differing in no respect, as far as I have 

 been able to discover, from those of phrenogamous plants, have been observed 

 by M. Corda and myself, to compose the flocculent mass in the genus Trichia. 



Ann. Nat. Hist. Vol. 1.— No. 2. April 1838. h 



