T^redinaceEe, Melampsora. 601 



NECIUM Artlmr, North Am. Xlora VII (1907. p. 114 (Etym. videtur 

 a necys, necijos defunctus). — Teleutosponi; cellulas epidermicas 

 matricis implentes, strata continua elongata e soris confluentibus 

 formata constituentes, oblongre v. prismaticse, apparenter 1-cellu- 

 lares, membrana levi colorata prjeditae. 



1. Necium Farlowii Arthur, 1. c. pag. 114. — Soris continuis secus 2334 

 nervum medium dispositis, vix prominulis, rubentibus, ceraceis, 

 linearibus, 1-2 mm. long., 0,3-0,6 mm. cr., soris singulis 60-100 

 \i. long. ; telautosporis intra cellulas epidermicas dilatatas dense 

 stipatis, oblongis v. cylindraceis, 35-58 * 7-10, membrana pallidis- 

 sime brunnea, levi, aequali, 0,5-0,8 [x. cr. 



Hdb. in foliis Abietis canadensis, MassacLusetts Amer. 

 bor. (A. B. Seymur). 



MELAMPSORA Cast. — Syll. VII p. 586, IX p. 296, XI p 183, 

 XIV p. 287, XVI p. 1118, XVII p. 266, 464. 



1. Melampsora Passiflorae Hariot, Les Uredin. in Encyclop. sciont. 2335 

 (1908) pag. 258. — Uredosoris pustuliformibus, vix prominulis, 

 sparsis, hypopliyllis, albidis, irregularibus ; uredosporis ovoideis, 

 ellipsoideis, rarius globulosis, verrucosis, pallide flavis, paraphy- 

 sibus clavatis, 68 «20; teleutosporis .... 



^a&. in foliis Passiflorse luteae in horto botanico, Avignon 

 Gallia3. 



2. Melampsora Kusanoi Diet., Engl. Jahrb. XXXVII (1905) p. 104. 2336 

 — Uredosoris hypophyllis in maculis flavidulis v. ochraceis, mi- 

 nutis, sparsis; uredosporis late ellipsoideis 19-24 « 15-18, episporio 

 hyalino, verrucoso vel aculeato indutis, paraphysibus numerosis, 

 capitatis hyalinis intermixtis; soris teleutospoviferis, parvis, cru- 

 staceis sparsis v. irregulariter congregatis primo castaneis postremo 

 nigris; teleutosporis prismaticis, usque ad 30 \i. long., 5-10 [j.. lat., 

 ilavis, apice obscurioribus et vix incrassatis. 



Ilah. ad folia Hyperici Ascyri, Yumoto Nikko Japonia? 



(KUSANO). 



3. Melampsora mexicana (Arthur) Sacc et Trott. Buhalda me.dcana 2337 

 Arthur, North Amer. Fl. VII (1907) p. 104. — Uredosoris am- 

 phigenis, sparsis, rotundatis, 0,5 mm. circ. cr., mox dehiscentibus, 

 cinnamomeo-brunneis, pulveraceis, subinconspicuis; uredosporis ob- 

 ovatis 27-35 * 20-24, tunica flavo-aurata 2-2,5 [j,. cr., sed supra 

 usque ad 5-8 \i. cr., aaqualiter et crasse ochinulata, por.s germinativis 



