BOTAIfIQB. ' 1 9 



EXPLICATION DES FIGURES. 



Pl. xvii , fig. 4. a, Marasmius hwmatocephalus groupc au nom- 

 bre de trois individus sur la mine fcuille ct de grandeor nalurelle. 

 b , Individu vu en dessous pour montrer ia dispositioa des feaillets 

 ou lamellcs. 



AGARICUS, Fries. 



Hymenium inferan membrunnceo-ceraceum e cellulis 

 cylindricis clavatis plus minus elongatis erectis (paraphy- 

 sibus), basidiis (sporophoris Berk. ascis exosporis Fries), 

 et antheris (cystidiis Lev. utriculis Berk. antheridiis Corda) 

 compositum , pr'unitus receptculo vario, sa?pius autem 

 pileiformi stipitato aut sessili conthiuum, effiguratum, 

 lamellatum. Lamellee memb nceos, persistentes , acie 

 acutce, e stipite centrove radiantes , simplices , parallehe , 

 immixtis plerumque brevioribm , trama subfloccosa cum 

 hymenophoro {receptculo) infero conc relee, e. lamina du- 

 plici factee , extrorsum atrinque basidiophorce. Basidia 

 simplicissima nter ce/lulas hymenii steriles (paraphyses) 

 nidulantia, pice libero sporidiis coronata. Sporidia raro 

 bina aut terna, sfpius quaterna aut sena, symmetrice 

 disposita, pedicello (sterigmate Corda) sujfulta, demum 

 in pulverem secedeutia. 



Fungi carnosi, putrescentes , nec exsiccati reviviscen- 

 tes. Stipes nunquam reticulatus, centralis , excntricas , 

 lateralis, vel raro oblitteratus. Pileus carnosas vel mem- 

 branceas, horizontalis in adultis , determinatus } mar- 

 gine libero, juniori inflexo. Velum varium vel nullum. 



Agaricus , Liim. Pers., Alionimq. reform. 



Agaricus, Fries, Epicr., I, p. 2. Montag. in Webb et 

 Berth., Ilist. Nat. Caar., Phytogr. sect. ult., p. 69. 



