86 Rev. M. J. Berkeley on the Fructification of the 



tendon. In 1809 Link* first described and figured the re- 

 productive bodies as contained in thecal in the genus Ayari- 

 cus. Mcruli us. Cantharetlus, Xylophagus, Dadalea, Boletus 

 (fig. 59), Fist it fin a, Sistotrema, Hydnum (fig. 61), Thelephora, 

 Stereum, Merisma, Clavaria are also described as thecigerous. 

 Ci Omnibus fere scries unica sporidiorum in theca excepto 

 Coprinus et paucis aliis." Of Coprinus,\ie says, " Ab omnibus 

 fere Fungis charactere singulari thecarum differt. Has enim 

 non juxta positae sunt ut in Ayaricis, nee unica sporidiorum 

 serie farctae, sed segregatae majores quadruplici sporidiorum 

 scric refertae. Hinc sporidia dum effunduntur quaternatim 

 disposita sunt, donee nimia prodeuntium copia ordo turbatur." 

 The figures, it should be observed, are by Ditmar. The same 

 year produced another memoir on the same subject from the 

 same pent. The analyses of Hymenomycetous genera are 

 upon the whole more clearly made out. In Amanita bulbosa 

 tab. 1, fig. 14, the sporidia are represented as contained at 

 first in the thecae and then escaping. Of Coprinus he says, 

 ci Thecae magnae sporam regulariter emittentes in frustulis 

 segmenti parum obliqui apparent, unde satis patet quamlibet 

 thecam quaternam sporarum seriem amplecti, et hanc ob 

 causam, sporam ad quatuor orificii latera excutere." It is 

 clear from this that his figure of the contents of the thecae in 

 Coprinus is ideal, representing what was supposed to be the 

 structure, and not what was actually seen. The united au- 

 thority of Link and Ditmar has prevailed to hand down this 

 notion almost to the present moment. 



In the same year, however, Mr. Sowerby ± figured the spores 

 in Merulius lanieltosus {Ay \ panuoides, Fr.) as naked and seated 

 upon short hairs. The same appearance is represented in the 

 figure of Hydnum membranaceum published in 1801. In both 

 cases the bodies are called glands in the text. 



In 1813 Ditmar § ascribed thecae to Ayaricus phlebophorus. 



* Der Gesellschaft naturforschender Freunde zu Berlin Magazin. Dritten 

 Jahrgangs, erstes Quartal. Berlin, 1809. Observationes in Ordines Plan- 

 tarum Naturales. Dissertatio prima. 



f Nova Plantarum genera e classe Lichenum, Algarum, Fungorum ; in 

 Sclirader's Neues Journal fiir die Botanik, vol. iii. Erfurt, 1809. 



X Coloured figures of English Fungi, tab. 403. Supplement. London, 1809. 



§ Deutschlands Flora. 3 te Abtheilung. Nurnberg, 1813. 





