104 Ohio Naturalist. [Vol. 1, No. 6 



ORDERS OF MOSSES. 



1. Sphag-na-les; the Bog-mosses or Sphagnum. 



2. An-dre-se-a-les ; one genus of small Mosses in mountain regions. 



3. Ar-chid-i-a-les ; only one very short-stemmed species. 



4. Bry-a-les; the common Mosses occurring in Ohio. 



The only book that could be used by beginners in identifying 

 Mosses, is Grout's "Mosses with a Hand-lens," price 11.10; procure if 

 wanted from the author, or if placed in our hands the order will be 

 attended to. The Manual by Lesquereux and James could be used by 

 advanced students. 



It is earnestly requested that contributions of Mosses for the State 

 Hekbarium from every County in Ohio be made. Please send an 

 ample amount of each kind, enclosed in a temporary paper pocket or 

 envelope ; with each specimen lay a slip of paper or temporary label, 

 giving locality, date and collector's name, also any notes that are made 

 with reference to habitat or habit of the plants. The donor's name and 

 other data will be placed on the permanent label accompanying the 

 herbarium specimens. 



ADDITIONAL NOTE ON THE SYNDESMON INVOLUCRE. 



A. Wetzstein. 



In addition to the observations made by Mr. F. H. Burglehaus, 

 Toledo, Ohio, concerning the involucral leaves of Syndesmon thalic- 

 troides Hoffmg., as stated in No. 5 of the Ohio Naturalist, I also 

 confirm the contradiction in the habitus of plants growing in Aug- 

 laize County with the description in Britton & Brown's Flora. All 

 specimens I found here have no sessile involucral leaves, but petioles 

 mostly about one-fourth of an inch in length. Especially the later 

 flowering iilants, that often grow over one foot high, show petioles 

 of more than one-half inch in length, while even the earliest — col- 

 lected about the middle of April, and no more than three inches 

 high — exhibit distinctly petioled involucral leaves. 



It might be very interesting to find out the range of plants with 

 sessile involucres — for I do not at all think this description'of Syn- 

 desmon to be an error in so carefully prepared a Flora as Britton & 

 Brown's is, the more as the given figure shows strictly sessile 

 involucres too. 



St. Marys, Ohio. 



