EG: al: 
FiGs, 2, 4. 
Fics. 3, 9. 
3 
oF 
Fics. 5-8. 
rc 
6. 
. Summit of a compound pinna from Deep Bottom 
. Fragments of a large compound pinna or of the frond 
b Jette miner | Sa poocas Sa5e ceoess cocbSs CDSUdD Cane SAnOSS Shere SobHSSGsaeeS ces 
SU PPELPAku Ola PIN A seer masene ces sess = kaa ee eee eae ee eee ee ees 
. Pinnule magnified 
PLEAD Xx VAT. 
SPHENOPTERIS LATILOBA, sp. nov 
THYRSOPTERIS NERVOSA, Sp. Nov 
THYRSOPTHRIS! BREVIPENNIS; Spi NOs ss=-=5 === cease sere sees ees eae eee eee 
Fragment of a compound pinna from Deep Bottom ........---.--...----------- ---- 
Fragment from the top of a compound pinna, collected by Meek at Baltimore 
THYRSOPTERIS DIVARICATA, BP. NOV .. << ~ nnn on on ccc wee cnee moc cewecesccce= secuce 
WoUMMb ofa compound pinna or of a irond!—--.\—/-s-) cease eee eee see eee eee eee 
Upper portioniof/ aicompound| pinnaoria frond) = 2-2 = oe ee eicee oe el nene 
SOW EL PINNU Le Ol OM aC NINO seme lean atsie sees ela ie eee te ee = eee ee 
PU ppex, pinnileonosmaeni ned ee. os eemetcc eee eee = aes ee cere Sete eee 
pura Ment, Of aiCOMPOUNG PING taueesc sacs e assem ns cea eeeeee eee == eee 
PePinnuleohm Maonthedees see see ee eece eee aati ee a Ae eee cee see nen eee eae 
Upper part of a compound pinna or of a frond..... monsosesoce o tee c ee peewee cone cone 
