152 
Dietel, P. Die Gattung Ravenelia. Hedw. 33: 22-48. 
' pl. 1-5. 30Ja. 49-69. 15Ap 1894. 
The foregoing are correct forms for catalogue by author. The 
following illustrate cases arising under the rules indicated by 
the letter preceding. 
El. and Everh. Pyren. 491. My 1892. 
Proc. Phil. Acad. 1894: 53-59. 1894. 
The year number, 1894, is the volume number, and not neces- 
sarily the year cf publication. E. g., 
Bessey, Am. Pomol. Soz. 1885: 42. 1886. 
Mez, C. Bromeliacece. III. Flora Brasiliensis 115: 
425-634. pl. Sr-r1rg. 1F 1894. 
Saccardo, P. A. Syll. Fung. 77:481. N 1890. 
j- Bull. Geol. and Nat. Hist. Surv. Minn. 9:39-42. 2Mr 
1894. 
Not 9?; nor 9 part 2; nor 1894 [part 2]. 
j- Linn. Sp. Plant. 62:125. 1852. [ed. Willd.] 
Gray, A. Man. Bot. 225. 1890. [6th ed.] 
Peck, C. F. Rep. N.Y. Mus. 47:— (18). N 1894. 
Ell. and Rverh. N. A. F. 7642. F1889. 
Rept. Mo, lsut. Gard. 2:98. d. pl. 28. 22 Apr89gt. 
Beringer, Am. Jour. Pharm. 66:220 My 1894.—Tu 
lasne, Ann. Sci. Nat. Bot. III. 7:85. d. pl. 2. f- 3- 
1847. 
Bailey, The Japanese plums in North America. Bull. 
Cornell Exp. Sta. 62:3-36. Ja1894._ [Illust.] 
The figures are not numbered. 
Ell. and Kell. Jour. Myc. 1:12. d@. Ja1885.—(Hedw. 
24:45 d. Je1885.) Peck, (Grev. 222111. Je1894.) 
