1917] 
BURT—MERULIUS IN NORTH AMERICA 307 
permitting me to study the Peck types of species of this genus 
in the New York State Herbarium, and to Dr. W. G. Farlow 
for access to specimens in the Curtis Herbarium. Miss E. M. 
Wakefield has kindly studied two type specimens in Kew Her- 
barium which were inaccessible to me and has communicated 
the results. Specimens received from Abate G. Bresadola 
and Mr. L. Romell have been of the utmost value for com- 
parison of American species with those of Europe. To all I 
make grateful acknowledgment for aid. 
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KEY то THE SPECIES 
LEPTOSPORI. Spores white (perhaps colored in 9. M. sordidus when 
ШИШИ Tem ооо оне bs вас ив оо уа ер ка ИШИ ОТ as 
B 6%464%56%265950646%6%69996ө;0%е6еееео9 чо о кет 82594424 49 «9499 s | 
Color of spores ae probably тъне... ес coe 8. М. Wrightit 
Я Fructifications dimidiate- 5... эз раса аа КДА сои сы 
хоз ох ое әә ооо озона свое & 
тїп їп 
. Fructifications always тевцрїйаб@ё.........5.%» кои ИЕС CO ro] 
2. Fructifications dimidiate, imbricated, tomentose, coral-pink when 
fresh; spores 4—43 X2-24 ш; rare outside of — EL A 
sess ety efe e yel ie О АЛ КОЛКО О se Де АИИ incarnatus 
2. т rey solitary, hirsute, S eiii cream-buff ; j 
3X2 и; known from Jalapa, Mexico, only....... 2. M. hirsutus 
2. Fructifications reniform, very small, 5X mm. а and 3 mm. in diam- 
eter, 2555 tomentose, seeing Isabella-color; spores not ob- 
СОСО Несе in Теха:.......................» 9. M. Wrightit 
Fruetification. fleshy-tremellose, v ith a broad gelatinous subhymenial 
layer which dries horny and requires several minutes to absorb sr 
to soften for баси ае pores often transversely partitioned; 
мейе шай, ЗА ШС БЕТ botas sss зун ERE . М. tremellosus 
. Fructification with s аі layer having walls of its hyphae gelati; 
nously modified, but thin and somewhat pliant when dry; z stidia 
spores: EOX И: оп сөлПеті Я "5. М. ambiguus 
. Fructification neither fleshy-tremellose nor with walls of hyphae of the 
odified 
rig eme layer: gelatinously (Modified sh 157 ака а иск ad 
4. Hyphae = - ае ите, nha ax fructification coriaceous, 
oft, somewhat tom cally suleate when br roadly 
ез жет» to pallid. іі. piis spores 43-5 X23 w...... 
6. M. 
.4..................................-.жшжа n n эш n n 
сенге о buff "to cinnam on; pores à about 3 t m.; spores of 
Ameriean collections 43-5 X 14-2 Ше: Pim oc e M. corium 
. Reflexed portion drying cinnamon- Mu Қалайы hymenium bony 
and 
between vinaceous-brown gente ; pores about 2-3 to a 
sections change to orbi em by action api KHO solution; spores hyalina 
3X14 и as seen attached to basidia, published by Cooke ав dilu te 
ор 7X5 ш; described from Venezuela, but may range T pies 
orth 9. sordidus 
ооо ооо ооо оное оо ее кое 
