collected in Zanzibar. 385 



5. Agaricus (Omphalia) Arethusa, B. Pusilla, glabra, 

 tota alba ; margine crenato ; stipite pellucido gracili (no. 5). 



By the roadside, on grass, solitary. 



Pileus not exceeding \ inch across, umbilicate, pure white ; 

 stem 4 inch high, about \ line thick ; very delicate. 



6. A. (Omphalia) ojfuciatus, Fr. Hym. Eur. p. 156 ; Ic. 

 tab. 72. fig. 3 (no. 19). 



I have no specimen of this, only a drawing, which accords 

 with A. offuciatus. 



7. A. (Pleurotus) obfuscescens, B. Pileo flabelliformi, 

 sericeo scabriusculo, margine subinvoluto ; stipite confluente 

 cum pileo ; lamellis angustis decurrentibus, postice fuscescen- 

 tibus, interstitiis rugosis (no. 11). 



In cultivated ground, Nov. 6. 



Pileus about 1-2 inches broad, 1^ or more long ; stem 

 about \ inch long, dilated upwards, gradually passing into 

 the pileus ; when dry turning partially brown. 



8. A. (Volvaria) medius, Fr. Hym. Eur. p. 184 (no. 12). 

 Volva deeply lobed, silky. Of a beautiful pale pink. Pileus 



when young campanulate. 



9. A. (Naucoria) scolecinus, Fr. Hym. Eur. p. 258 (no. 8). 

 On roadsides, Nov. 6. The dark brown lower portion of 



the stem is very characteristic. 



10. A. (Naucoria) glandiformis, Cooke, tab. 490. 



I have only a drawing of this, which represents many 

 specimens, springing from the same base. Possibly it may 

 belong rather to A. nucens, which it closely resembles. 



11. A. (Naucoria) pediades, Fr. Hym. Eur. p. 260 (no. 1). 

 In a garden-pot, July 5. 



The drawing represents a short-stemmed form much like 

 A. vei'vacti, Fr., but the dried specimens accord with Cooke, 

 tab. 492. A. arvalis, Cooke, tab. 479, agrees with specimens 

 so named by M. Libert in her ' Exsiccati.' The spores are 

 the same in all. 



12. A. (Naucoria) nicotianus, B. Pileo hemisphasrico, 

 fusco, pulverulento ; margine striato-lacerato ; stipite flexuoso, 

 tenui farcto concolore ; lamellis latis postice truncatis sinuatis, 

 breviter adnexis. 



Pileus about ^ inch across ; stem | inch high, about ^ line 

 thick. The gills are very peculiar, being strongly truncate 

 behind, and then sinuate and adnexed. The species is other- 

 wise much like A. tabacinus. 



13. A. (Psalliota) campestris, L. (no. 18). 

 Dec. 4. Only a drawing. 



14. A. (Psalliota) Lalage, B. Medius; pileo roseo, furfu- 



