106 TWENTY-FOURTH REPORT ON THE STATE MUSEUM. 
6. Mouth of the numerous equal peridia distinctly 
BSW inkc'om De Shed de pig vise eee cee Ermosn 
6. Mouth of the few unequal peridia not distinctly EvPHoRBLE- 
RODOO «a aies's ace esis Stern ha RU aE aE HY PERICIFOLLE 
3. Leaf plainly discolored ................. : i 
7. Leaf yellowish, not thickened ; peridia large. . CLAYTONIATUM 
7. Leaf brownish, generally thickened ; ; peridia not 
TAPE 2 et wipidweninn ~ seated e ent eie HovstoniaTuM 
1. Peridia elongated, nestling in the tomen- 
onmi of thetleaf:d .2). sisisigelos ty.) 2 ctent 8 
8. Peridia few, crowded or scattered............ GNAPHALIATUM 
8. Peridia numerous, not crowded.............. ALLENII 
b. Peridia in definite spots or clusters. 
oO iilongabed ONS. << SLUR A kone 10 
10. Seated on a thickened subiculum........ 11 
11. Spots brown or chestnut-colored ............ FRAXINI 
ol Sy LU, ain ea A AY TCR St BERBERIDIS 
10. Subiculum not thickened .............. 12 
12. Peridia extending to the margin of the spot. . 13 
13. Many, in dense roundish clusters........ THALICTRI 
13. Few, loosely placed on orbicular spots... MACROSPORUM 
12. Peridia central on a yellow spot with sterile 
PUPP OTN ovate te Meth toler eave te ie leetetae eens te HYDNOIDEUM 
9. Short or sub-immersed ............... 14 
14. On a thickened subiculum............. 15 
ieopots distinct, yellow,” os edte s,s yioe slats 16 
16. Small on ‘the leaves, larger and most often 
on the petioles, which are thickened 
ang -Ciscorbed + 2. watt. «the «a eiein.. A SaMBuctr 
16. Most often on the leaves; and as large as 
on the slightly thickened petioles. .... Vi0Lz 
15. Spots more or less red or purple, not clear 
: VellOw be a eels eee viet eee Seems 17 
17. Pale red, stems or petioles sometimes 
PUIG EL yt ars cre ere aeRO Siew eater CLEMATITIS 
17. Chestnut-colored or reddish-brown...... 18 
18. Peridia extending to the margin...... Myricatum 
18. ‘Peridia cenbralli. ics tis. )282 eek wae tg Limonu 
17. Yellowish stained with red or purple .... PUSTULATUM 
doe pote obliterated. 6...) A Saisie Squeegee 
19. Petioles often attacked and much distorted, Urticz 
19 Petioles noti distorted: 2 '. 5. <1 yesonge tees 20 
20. Peridia wide-mouthed, crowded....... RaANUNCULACEARUM 
20. Peridia narrow-mouthed, spores ellipti- 
CA cd ts Sicieaes.e eet err MENTHE. 
14. Subiculum not thickened .............. 21 
21. Spots yellow, with no tinge of red or 
22 
PuUlple sss 33 GAS ete eh eee 
