1918] | 
BURT—THELEPHORACEAE OF NORTH AMERICA, IX 179 
and A. nivosus, have wide range in the United States. Our 
other species are local: 7 comprise the total for New England, 
7 are subtropical or tropical, and 5 are present in the Rocky 
Mountain states or westward. 
KEY To THE SPECIES 
Fructifications discoid, cup-shaped, pezizaeform, as in A. amorphus...... 1 
‘ructi се 2. effuso-reflexed, ae with margin free all 
"rl as in A. Oakesii, sometimes barely showing color of under side, 
n А. duis, winds i в often strictly гевирїпайе.................. 
Fructifications resupinate, effused, the margin never reflexed............ 3 
Spores minutely echinulate; paraphyses moniliform; free margin of fruc- 
tification light-colored on under side; on balsam fir and s spruce....... 
к- 
кей 
. Spores even; paraphyses of bottle- t form; free margin of under side 
of fru ctification deep mouse-gray ; 1 hemlock in New England and 
New2YOrk s. ТӘН ое Ие 9. A. Farlowii 
А Ер even; some paraphyses of bottle-brush form, others with monili- 
form tips; margin of under gi of fructification light-co colo igni on 
— 
Ostrya and other frondose вресіев........................... we ree 
2. Spores even; some SUR of bottle-brush form, others Él. 
Pit Ses DOR Loose rre ee eee ee Ten Sete ee ys 8. А. Oakesii 
2. Fio minutely echinulate, apiculate; many paraphyses of ages 
ush form, none moniliform; sometimes resupinate; Jamaica to 
Verb eR M СОАУ RPM C p CA. bdo 
2. Spores even; paraphyses with somewhat cory шоу branched, fili- 
form tips, made out with great diffieulty beca of the lar arge 
amount of аланнар and erystalline matter навест теве 
chalk-white, orbieular; sometimes resupinate........... 5. A. candidus 
> 
Fructifications drying between antimony-yellow and yellow-ocher at унд 
surface, white within, staining herbarium sheets and envelopes ed 
О ИК КТ О ОСМ, 6. A. strumosus 
3. Fructifications not egg-yellow ........................................ 
4. i ini араны loaded with inerusting matter, so wd their 
ing is not easily made out, not of bottle- brush form........ 5 
4. раар with short lateral prongs, і. e., = bottle-brush m. and 
organs for carrying heavy іпегінбайіоп...................... 6 
5. Paraphyses rence spirally hide ed or flexuous; spores Mene 11-18X 
93-13 ш; globose organs staining brown with ее 6-15 шіп diameter, 
AVR throughout the fructification; in and Jama DEA: seriatus 
5. Paraphyses with corymbosely branched, tips; s even, 15-0 12-16 ш; 
еее. poe 18-309 ш; fructifications white; on bark of liv- 
в Pee Pee eer Se ee eee AID Du D t . А. nivostis 
5. Rigo: heuer үгі ith een ad branched tips; spores even, 10-12 x 6-7 и; 
es sam not ргевепі............................»....... 9. A. acerinus 
б. Boe VB >... viae СЕООА ОРУС 
6. Spores minutely есһіпші4е................................22.... 8 
. Bottle-brush portions of paraphyses 10-15 Х3-43 и over lateral prongs; 
- 
spores т 9-11 и; on Rubus and Vitis in Massachusetts, Ке» па, 
anl Mixteo- ТЕР ООС xd quic S Se 10. 42” 
т. Bottle-bra а portion 15X6 д over lateral prongs spores globose, 9 д in 
diameter ; uctifications cream-buff, тын и thick, zonate with 
crystalline src on Quercus in New Мехісо.............. . А. cremeus 
