Urediaales, MelampsoracetB, Melampsoreje, Melampsofa. 83S 



riipta ciuctis ; aecidiosporis globosis v. ellipsoideis 16-23 «^ 12-18, 

 tuiiica hyaliiia 1,5-2,5 [i, cr., crebre miiiuteque sed evideuter ver- 

 rucosa; uredosoris bypopbylli.s irregulariter siiarsis plerumque ma- 

 culis flavis insidentibus, rotuiidatis, aliis miiiutis 0,1-0,2 mm. diam. 

 pallidis, aliis 0,2-0,5 miu. diam. pulvinatis, e aurantiacis pallide 

 flavis, epidermide rupta cinctis; parapliysibus capitatis v. clavato- 

 capitatis supra 20-30 (jl latis 30-60 [a long. membrana quandoque 

 4-5 |i cr. apice usque 6-9 [a, in parapbysibus clavatis tenuiori, hya- 

 lina, levi ; uredosporis globosis v. late ellipsoideis, parvis, 15-20 

 * 13-16, tunica hyalina 1,5-2 (jl cr., minute crebreque verrucosa ; 

 teleutosoris hypophyllis sparsis irregulariter rotundatis, 0,2-0,4 mm. 

 diam., rubro-brunueis, subepidermicis indehiscentibus ; teleutospo- 

 ris oblongis v. prismaticis utrinque rotundatis 30-32 * 7-12, tunica 

 pallide brunnea, uiiiformiter crassa, 1 jjl circ, levi. 



Hab. status aecidiosporicus inAbiete balsamea, con- 

 c o 1 o r i , Nova Scotia, Wisconsin, Michigan, Colorado, uredo-te- 

 leutosporicus in Salice balsamifera, discolori, hu- 

 m i 1 i , m o n t i c o 1 a , p e d i c e 1 1 a r i, S c o u 1 e r i a n a , W r i - 

 ghtii, Nova Scotia, New York, Colorado, Wisconsiu, Montana, 

 New Mexico, Amer. bor. 

 11. Melampsora Amygdalinae Kleb. in Pringsh. Jahrb. wiss. Bot., 2888 

 XXXIV, 1900 p. 352, Syd. Ured. III p. 369. — I Mel. Gastagnei 

 Thuem. p. p, (1879). — Uredo Amygdalinae Arth. (1906). — Pycui- 

 diis parum prominulis, lentiformibus; aecidiis in ramulis et foliis 

 junioribus evolutis, in foliis plerumque hypophyllis, usque 1 mm. 

 longis, sed in greges 3-10 mm. longos dispositis confluentibusque, 

 vivide aurantiacis; aecidiosporis globosis v. augulato-globosis usque 

 ovatis, minute verruculosis, 18-23 * 14-19, episporio 2 n cr. ; ure- 

 dosoris hypophyllis, in epiphyllo maculas decoloratas efificientibus, 

 sparsis, minutis, ca. 0,5 mm. diam., rotundatis, aurantiacis ; ure- 

 dosporis ovatis usque oblongis, remote aculeato-verruculosis, ad 

 apicem levibus, 20-40 ^ 11-18, episporio 1,5 |j, cr.; paraphysibus ca- 

 pitatis, hyalinis 35-80 |x loug. superne 10-18 fx latis, stipite 4-6 \). 

 cr. V. etiam clavatis superne 10-15 [j. latis et stipite 4-10 [i cr., mem- 

 brana 2-5 |ji lata; teleutosoris hypophyllis, subepidermicis, in gre- 

 ges minutos dispositis v. etiam folium totum obtegentibus, minutis, 

 Vs-O,^ mm. diam., primo rufo-brunueis, deiu atro-brunneis; teleu- 

 tosporis cylindraceis v. prismaticis, saepe irregularibus, utrinque 

 rotundatis, flavo-brunneis, 18-50 * 7-14, episporio aequali 1 [x cr. 



Hah. in foliis ramulisque S a 1 i c i s a m y g d a 1 i n a e , p e n- 



