Ustihif/iiKiIrs of huJ'Kinn. If. 1 ■■>!> 



Acc(»r(liii« to this troatilieiit. tlio smut on I.iliiiccoiis liosts heloiiKiiiK (<> 

 I lie tribe Scilleao. inoIudiiiK bosidos the American Qiiamdxia, siiecies of 

 Munraria, Oniithof/alum and ScilUi in Kurope. would be iissi^ned to f. Onii- 

 thof/nli. while / . Colchici would include the European f<u-m on (Utirhicuiii 

 uutiimnalc. Tlie writer is not able to express an opinion as to wlietlier the 

 form on {'onvallariaceae in Europe and America is properly assigned to 

 eitlier of tlie above species, as sufiicient material has not iteen available for 

 study. Clinton (Bost. Soc. Nat. Hist. Proc. 31 :4n2. IJKM ; X. Am. Flora 

 7 :r»7. l!K)(i) has assigned specimens on SalainQiiia and Vuffnera, collected 

 ill Iowa and Montana, somewhat doubtfully to U. Colchici. 



I . Oniithof/ali. differs from V. Cnlchiel chiefly in the widely different 

 character of the sorus. the size of the spores, and the character and wall 

 color of the surrounding layer of sterile cells. In the former the sori are 

 elliptical, connnonly half as broad as long, the spore balls consist iisually 

 of one. rarely two spores, which are 18-22 u in diameter, and the sterile 

 cells form a tirmly united unbroken spore covering, the walls of which are 

 cinnamon-brown. In the latter the sori are lineal', often ten or more times 

 iis long as broad ; the spore balls consist of one to two, rarely three siM)res. 

 which are 14-20u in diameter: the sterile cells with light cinnanion-l)r(iwn 

 Willis form a loose often interrupted layer over the spores. 



SPECIES NEW TO INDIANA. 



USTILAOINACEAE. 



48. Tjiecaphora Iresink (Elliott) Jackson. Mycologia 12:in4. lf)20. 

 Toiiiiwaporiitni Iresinc J. A. Elliott. Mycologia 11 :88. 1919. 



Sori localized in the inflorescence, involving the ovaries and pariantli of 

 one or a group of flowers, often involving the rachis and rarely occurring on 

 the stem or leaves, forming irregular compound galls 0.:>-o.i) cm. long, en- 

 closed by a firm, grayish-green membrane, which ruptures irregularly ex- 

 posing the reddish-brown spoi'e mass ; spore balls solid, subsphaeroid, 40-70u 

 or (^llipsoid. 50-70 b.v 60-90u. light chestnut-brown, composed of many. 15-70. 

 siMuvs; spores variable in shape, irregularly polyhedral, prismatic or ob- 

 long, 12-20 by 25-3211 ; inner wall thin, l-1.5u, colorless or pale cinnamon- 

 brown, smooth, exposed wall 2-4u thick, darker in color with prominent 

 verrucose-rugose markings. 

 ( )x Amaranthaceae : 



/rcsine pauiculata (L. ) Kuntze. In a dried up wooded slough, about one- 

 half mile south of Half ^loon pond, ten miles southwest of Mount Vernou. 

 Posey Co.. Sept. 21. 1918. C. C. Deam 2G651 (type) : Sept. 20. 1920. C. C. 

 licam :«041. 



This remarkable smut was sent to the writer among other parasitic fungi 

 in the fall of 1918 by Mr. Deam. It was at once recognized as a species of 

 Thecapbora and an examination of the literature revealed that only one 

 species of this genus was known in North America <tn Amaranthaceae. 

 namely, Thceuphoni Thm-uhcri (Jrittiths (Hull. Torrey Club 31:88. 1904). 

 The specimen on Iresine while agreeing in general with the description of 

 that si»ecies seemed to differ in important characters. A definite decision 

 with reference to the relation of the two forms was therefore reserved until 



