UredinacefB, Peridermium. 749 



latis, tunica transverse striata, intus crasse verrucosa. subcrassa 

 6-9 [j,., extus subsequali; a'cicliosporis ellipsoideis 23-29 « 10-20, 

 tunica colorata, lequaliter et minute verrucosa, 2,5-3,5 a. crassa. 

 Hdb. iu foliis Pini echinatae, Amer. bor. 



9. Peridermium montanum Arth. et Kern, Bull. Torr. Bot. Club, 2831 

 XXXIII (1906 p. 413. — Pycnidiis plerumque hypophyllis. sub- 

 numerosis, sparsis, conspicuis, subcuticularibus, rima longitudinaU 

 0,3-0,6 mm. lat., 0,5-1 mm. long. dehiscentibus, depresse conoideis 

 .55-65 [X. alt. ; oecidiis e mycelio limitato orientibus, plerumquo hy- 

 pophyllis, subnumerosis in maculis plus minusve expansis dispo- 

 sitis, rima angusta erumpentibus, laterahter depressis, 1-1,5 mm. 

 latis, 0,5-0,8 mm. alt., irregulariter erumpentibus; peridio hya- 

 lino, dehcato, cellulis 55-65 |j.. long., tunica subuniformiter 3-5 ;j.. 

 incrassata; cccidiosporis ex oblongo lineari-oblongis 32-45 «= 16-24, 

 tunica hyalina, subteiiui 2-3 [j.. cr., crebre et crasse verrucosa. 



Hah. in foliis Pini scopulorum, P. Murrayana-, in 

 America bor. 



10. Peridermium staiactiforme Arth. et Kern, Bull. Torr. Bot. Cl., 2832 

 XXXIII (1906] pag. 419. — Pycnidiis ignotis; a,'cidiis caulicolis, 

 sparsis, rotundatis v. irregularibus, 0,5-1,5 lat. v. 1-2 mm. long., 

 distinctis v. iuterdum coniluentibus, e pallide flavis albis, depressis, 

 parum exertis; peridio hemisphoerico v. tortuoso, lateraliter erum- 

 pente, 2 cell. circ. spisso, Sicpe irregulariter erumpente et lacinias 

 stalactiformes exerente; cellulis peridlalibus rotundatis v. quaudo- 

 que elongatis et parum acuminatis, tunica crassa, striata, lumine 

 parvo; secidiosporis ellipsoideis, 27-35 «16-21, tunica hyalina, 2,5- 



3,5 ;j.. cr., moderate verrucosa, lateraliter levi et paullo crassiori. 

 Hdb. in ramis Pini Murrayanae et Pini Jeffreyi, A- 

 merica bor. 



11. Peridermium l<urilense Diet., Engl. Jahrb. XXXVII (1905) p. 107. jsns 

 — Truncicola; pseudoperidiis vesiculosis, magnis, cortice luxurianti 

 circumdatis; s]3oris ellipsoideis v. oblongis, 25-40*17-27, verru- 

 cosis, partim levibus. 



Hdb. in ramis fusoideo-incrassatis P i n i p u m i l ;c , iu insula 

 Kurile Japoni^c (K. Yendo). — Aflfine Perid. IStrohl sod spora' con- 

 spicue majores. 



12. Peridermium mexicanum Arth. et Kern, Hull. Torr. .Bot. Chib, 2884 

 XXXIIl (1906) pag. 422. — - Pycnidiis ignotis; lecidiis cauhcolis, 

 gallas sphaeroideas irregulares 3-7 cm. latas efformantibus, ple- 

 rumque in ramis junioribus ot tortuosis dispositis, o pailidi' tlavis 



