120 PROCEEDINGS OF THE AMERICAN ACADEMY 



On mountains of the Bonin Islands. 



73. M. PARVULUS, Berk. & Curt. : pileo convexo striato d,elicato 

 pulverulento albo ; stipite capillari sericeo deorsum purpurascente ; la- 

 mellis ventricosis liberis. 



On the ground, Hong Kong. — Resembles 31. pusio, B. & C. 



74. M. DICHROUS, Berk. & Curt. : pusillus ; pileo convexo albo 

 glabro ; stipite brevi deorsum rufescente capillari ; lamellis paucis de- 

 currenti-adnexis ; interstitiis lievibus albis. 



On dead sticks, Bonin Islands. 



75. M. ALPHITODES, Berk. & Curt. : pusillus, albus ; pileo demum 

 piano stipiteque brevi farinosis ; lamellis paucis ; interstitiis Isevibus. 



On dead leaves of some Gingerwort, Bonin Islands. 



76. M. SORDESCENS, Berk. & Curt. : pileo depresso striato ex albo 

 umbrino ; stipite insititio subtiliter velutino fusco ; lamellis adnexis 

 pileo concoloribus. 



Dead twigs and leaves, Bonin Islands. — Has the habit of M. per- 

 forans. 



77. M. GLABRESCENS, Berk. & Curt. : pileo convexulo depresso 

 flavo primum furfuraceo-squamoso demum glabro ; stipite pallidiore 

 pulverulento-fibrilloso glabrescente ; lamellis distantibus venoso-con- 

 nexis adnexis flavis. 



In shaded ravines, Bonin Islands. 



78. M. UMBONiFER, Berk. & Curt. : pileo ex campanulato hemi- 

 sphaerico fortiter umbonato albido centro brunneo ; stipite insititio polito 

 glabro purpurasccnti-brunneo ; lamellis paucis collariatis albidis. 



In shady ravines, Bonin Islands. — Allied to il/. rotula and Guya- 

 nensis. 



79. M. ExusTUS, Berk. & Curt. : pusillus ; pileo hemisphsrico um- 

 bilicato sulcato brunneo-albo siccitate fusco ; stipite brevi capillari insi- 

 titio atro-fusco ; lamellis paucis. 



On dead leaves, Bonin Islands. — Nearly allied to the last. 



80. M. ACicuLARis, Berk. & Curt. : pileo hemisphzerico umbilicato 

 sulcato rufo-luteo ; stipite glaberrimo flavo insititio ; lamellis paucis 

 flavis adnatis. 



On decayed wood, Bonin Islands. 



81. M. ALUTACEUS, Berk. & Curt. : sordide alutaceus ; pileo inflato 

 campanulato, cute demum plicato-rugosa ; stipite subtiliter pulverulento ; 

 lamellis paucis ventricosis ; interstitiis lajvibus. 



Hong Kong. — Allied to 31. hcematocephalus. 



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