INDEX. 



165 



PAGE 



Difflugia pyriformis vax. venu- 



sta Penard 10 



? pyriformis Perty 4 



reticulata Ehrenb. 93 



septentrionalis var. bacilli- 



fera Averintz. 17 



Solowetzkii Averintz. 28 



Solowetzlcii G. S. West 25 

 sphagni Leidy . 143 



spiralis Ehrenb. 66, 67, 70 

 symmetrica Wallicb . 129 



! tricuspis Carter . 44, 48 



tubei'culata ( Wallich) 



Archer . 159 



urceolata Carter 39 



urceolata Leidy . 43 



var. amphora Leidy 43, 59 



vas Leidy 59 



DifflugieUa Cash 77 



apiculata Cash 78 



DlFPLUGINA 2, 159 



Heleopera Leidy 136 



lata Cash . 142 



petrioola Leidy . 137, 



(as syn.) 136 

 var. amethystea Penard 139 

 var. major Cash . . 139 



picta Leidy 143 



rosea Penard 141 



sphagni (Leidy) Hoph. . 143 

 sylvatioa Penard 136 



Hyalosphenia Stein 80 



ouneata Stein 83 



elegans Leidy ■ 89 



inconspicua G. S. West . 84 

 lata F. E. Sch. . . 83 



minuta Cash 85 



nobilis Cash . 92 



papilio Leidy . 81 



platystoma G. 8. West 86 

 sinuosa Cash . ■ 91 



subflava Cash ■ 87 



tincta Leidy . 100, 104 



PAGE 



Hyalosphenia I turfacea Taran. 89 



Leoquereusia see Lesquereusia 



Leptochlamys G. 8. West 146 



amptillacea G. S. West 146 



Lesquereusia Schlumh. . 65 



{Difflugia) spiralis Biitsoh. 68 



epistomiiim Penard 71 



ineequalis Cash . 72 



iurassica Sohlumb. 67 



var. epistomium Penard 71 



modesta Rhumbl. 70 



spiralis [Ehrenh.) Biitsch. 66 



spiralis Tardn. . 68, 



(as syn.) 70, 71 



Nebela Leidy 93, (as syn.) 136 



acolla Cash . 118 



amhigua Cash . .103 



americana Taran. . 115 



barbata Leidy . 113 



hicornis G. S. West 127 



? bipes (Carter) Murray 98 



bursella Taran. 100 



bursella Vejd. . 104 



carinata (Archer)\Leidy .^105 



carinata Leidy 108 



caudata Leidy . 124 



collaris (Ehrenb.) Leidy 93 



collaris Leidy . 94, 



(as syn.) 104, 109, 114, 119 



collaris Averintz. . . 117 



var. flabellulumJ3;i-Qe^^ . 117 



var. genuina Taran. 114 



var. lageniformis G. S. 



West . . .103 



crenulata Cash . 119 



dentistoma Penard 119 



equicaloeus Leidy 111 



flabellulum Leidy . 117 



Jlabellulum-collarisPeB.a,rdi 117 



galeata Penard . . 114 



hippocrepis Leidy 111 



lageniformis Penard 102 



longicollis Penard 115 



