MYCOLOGICAL BULLETIN 



No. 33 



ff. .4. Kcllcniiaii, Ph. D., Ohio State Lbihrrsity 



Columbus. Ohio. May 1, 1905 



ulBR/^pV 



"^ew Yoi?k 



Acknowledgment. — We have to thank Mr. Fred J. Seaver for the 

 instructive ilhistration contained in Fig. lOG, and Professor McBride, of 

 the University of Iowa, for the use of the electro. This and many otliers 

 were used in Vokime ."i of the Bulletin from tiie Laboratories of Natural 

 History of the State of Iowa, and we will take occasion to reproduce one 

 or two more illustrations from this scries in future Nos. of the Bulletin. 



.A.N Interesting Illustrated Article. — It is a pleasure to call atten- 

 tion to Mr. Seaver's article on the Discomycetes of Eastern Iowa which 

 is fully illustrated — twenty-five plates being used, each illucidating two 

 s])(.cies. Our I-'ig. l()(j is a sample. The plant, natural size usually, is 

 given, then eidarged figures — these always showing an ascus and paraphyses 

 if any, also the spo-rid'-i-a or ascospores. 



l'"iG. 106. The following is the explanation for the plate marked Fig. 100, p. \Z'2: 

 The illustrations marked 1, a. b. and c. show Spath-ii-la'-ri-a cla-va'-ta. At a 

 three jilants are rejiresented natnral size, and in their natural habit. At b is 

 given a figure of a single ascus containing spores, accompanied by two branching 

 l)a-raph'-y-ses; these are magnified tOOO diameters. Fig II, a. b. c. exhibits Le-o'-ti-a 

 sti-pi-ta'-ta. At 17 three plants arc given natural size; at 5 a mature ascus with sjiores 

 and two pa-rai)h'-y-ses magnified 750 diameters are shown. Fig. c exhibits a single 

 si)o-rid'-iuni, or ascospore, magnified 2000 diameters. The figures are all drawn 

 by I'Ved J. Seaver from specimens collected in Iowa. Spath-u-la'-ri-a cla-va'-ta is a 

 common yellow species occurring in woods in summer. Le-o'-ti-a sti-pi-ta'-ta has a 

 globose or spreading pileus of dark aeruginous green, the stem is a light yellow. It 

 occurs in woods in summer and fall. 



I'lG. i04. Dae-da'-lu-a AM-Bir,'-r-A. This represents, considerably reduced from 

 the natural size, a common fungus in habit much like the common I'olypores; but tlii- 

 pores are chansj(d slightly from this circular shai)e, as in tliis case, or they become much 

 LO flattened so as to form labyrinthine passages, or even lamellae or plates. A magnified 

 CD \ iew of tlu- i)orts is shown in the next figure. The jihotos are from a herbarium speci- 

 CTJ nien that was distributid bv the .Alabama I'.iological .Survev, collected by V . .S. luule 

 » — in IKUS. 



CO — 



Cv) University Bulletin, Scries 9. No. 19. Entered as Second Qass Matter, Post-office at Columbus. Ohio 



