70 



in the list. Only Monroe County mosses are included in the present report, 

 but it is hoped that there will be time and opportunity to later extend the 

 list to include at least all the common mosses of Indiana. 



In general it may be said that the past season has been unusually 

 favorable for the growth and de^ elopment of mosses, and as a result it has 

 been possible to collect some very interesting forms. Among these should 

 be mentioned Anomodon attenuatus with regularly pinnate to plumose 

 habit due to strong secondary growth from lateral buds, tlie formation in 

 fall of a second crop of spores by such spring fruiting forms as Campylium 

 cbrysoiiliylliiiii. Fnnaria flavi<;uis. F. hygrometrica and Weisia viridula, 

 and the presence of a fairly abundant supply of spcn-e cases on such rare- 

 fruiting forms as T.eucobryum glaucum, Plagiothecium deplanatum and 

 Thuidiuui dclicatuluiu. 



The worlv of identifying mosses is tedious and time consuming, and in 

 the main reipiires mucli careful observation with the use of a good com- 

 pound microscope. The writer has fonnd that only after the collector is 

 quite well acquainted with groii]) characters can he do any satisfactory 

 work without a good microscoitc. Tlie most lielpful worli on classification 

 is A. .1. (Jroufs "Mosses witli .1 Iland-lcns and .Microscoix:',"" with its usable 

 liey.s, distinctive desciiptions ind sjilendid illustrations. The older man- 

 ual of L','s(inersu.\ and .lames is often <)f value for descriptions of varie- 

 ties and of rarer forms not (lcs( ribcd in rinaifs work. In iircparing the 

 list the arrangement and nomenclature of Gront liave ])een used. Specially 

 difficult specimens have been referred to Dr. Grout for identification, and 

 his name appears in connection with siicb. 

 Order BKYALES. 



Sul»i )rder Nkm.v doxte.k. 

 Family /'nliitrich(irr<r. 

 Catliarinea undnl.-ita (L. 1 AV. & M. (?,7. (\4). Malnre spore <ases October 



-'7. 



('om?non along shady roadsides .ind in light woods, on clay. 

 Pogonatum brevicaule (Brid. ) P.eauv (10). Mature cajisules September 15. 



On damp clay banks. Common. 

 Polytrichnm commune L. (47). Spores in April. 



On shady hillsides. Common. 

 1'. oliidcnse K. & C. Spores in April. 



On shady hillsides. This is the form usually met with in the neigh- 



