820 Urediuales, Pncciniacese, PhragniidieaB, Pbragmidium. 



1. Phragmidium Duchesneae (Artli.) Syd., Ured. III p. 93 (1912), KUh- 

 neola Duchesneae Arth. iu NortU Anier. Fl. Ured. p. 185 (1912). — 

 Pycnidiis plerunique epiphyllis, in greges 0,2-0,4 mm. diam. dispo- 

 sitis, saepe conflnentibus, ai^planato-globosis, 90-110 [i diam. 45-55 |x 

 altis ; aecidiis plerumque epiphyllis, pycnidia circnmdantibus, ag- 

 gregatis, subinde annulatim confluentibus, plerumque aparapbysa- 

 tis; aecidiosporis globosis, subglobosis v. ellipsoideis, dense minu- 

 teque echinulato-verruculosis, 15-22*13-17, episporio 1 i^ crasso ; 

 uredosoris hypophyllis, sparsis minutis, ^/3-^/4 unn. diam. mox nu- 

 dis, pulveruleutis, epidermide rupta cinctis, pallide flavis ; para- 

 physibus paucis, cyb'ndraceis, rectis vel subrectis, 40-55 <£■ 8-12, hyn- 

 b'nis, tenuiter tuuicatis, membrana 1 [x cr. ; uredosporis globosis, 

 subglobosis V. late eHipsoideis, dense minuteque ecliinulatis, 16-23 



* 13-17, episporio 1 \i cr., poris germ. 3 aequatorialibus incouspi- 

 cuis praeditis ; teleutosoris bypophyllis, sj^arsis, minutis, 0,2-0,5 

 mm. diam., mox uudis, pulviuatis, cinnamomeo-brunneis ; teleuto- 

 sporis cylindraceo-clavatis, 2-4 septatis, ad septa non v. vix con- 

 strictis, apice rotundatis et modice vel magis incrassatis (5-10 [jl), 

 levibus, brunneis, deorsum pallidioribus, 50-80 ^ 20-26, quaque cel- 

 luhi poro germinationis singulo apicali instriicta, statim germinan- 

 tibus, episporio 1,5-2 [x cr- ; pedicello persisteuti, crasso, hyalino 

 V. superne leniter colorato, usque 80 [x longo. 



Hab. iu foliis D u c h e s n e a e ( F r a g a r i a e ) i n d i c a e [Ro- 

 saceae], in America bor. or. 



2. PhragmJdlum Horkeliae Garrett, Fungi Utabens. exs., n. 112 (1901), 

 Syd., Ured. III p. 94. — Teleutosoris amphigenis, sparsis v. aggre- 

 gatis, saepius^onfluentibus, 0,5-2 mm. diam., epidermide ru])ta cinc- 

 tis, atris v. atro-bruuneis; teleutosporis ellipsoideis v. oblongis, 

 plerumque 1-septatis (raro continuis v. 2-septatis), ad septum non 

 v. leniter constrictis, apice rotundatis v. raro acutiusculis, non v. 

 lenissirae incrassatis, inconspicue minute sparseque verruculosis, 

 saepe sublevibus, brunneis, 35-50 v^ 21-28 (unicelluhiribus 23-26 (Ji, 

 3-celkilaribus 50-60 [x long.), episporio 2-3 [i, ad apicem usque 5 |ji 

 cr., quaque cellula poris germ. 2 instructa; pedicello hyalino, crasso, 

 flexuoso, aequali, persistenti, usque 150 \i- longo. 



Hah. in foliis Horkeliae Gordoni (=^ Ivesiae Gordonii) 

 [Ro.saceae], Utah, Amer. bor. 



3. Phragmldium Sanguisorbae (DC.) Schr. — Sacc, Sylh YII, p. 742 — 

 var. longipes Sacc. et Trott-, Ann. Mycol. XI, 1913, p. 413. — A 

 typo recedit pedunculo longiore (30-80 (jl) paullo graciliore (9-12 |ji). 



