l 9& BOTANICAL GAZETTE. [ August, 



hitherto been confused with P. epiphylla. Both of these are 

 well known European species. This brings the flora of the 

 "Manual region" to 140 species, which, as compared with 

 the former publication in Gray's Manual by Sullivant, is an 

 increase of 31^ species. It should be noted, however, that 

 from Sullivant's enumeration should be deducted : (1) those 

 species which were then erroneously accredited to our dis- 

 trict (5 species) ; (2) species included which have since been 

 reduced to synonyms (8 species) ; and (3) species included in 



his list whiVli ™ra.-a Kmm^J +u~ !:_:<. — r A u _ c. i\/r ^i • _ >» 



Manual 



(13 species). After making these legitimate deductions, the 

 ratio stands 83 to 140, which represents a fair advance when 



lira PAnm Jav ±1-* ^ f**.- 1- -1 . i • i 11 « « .• 



4 



in America during the last twenty-six years. 29 



From Canada and the other British provinces are a con- 

 siderable number of additions to report, due chiefly to the 

 untiring energy of Prof. John Macoun. We wait the publi- 

 cation of these by their collector. We are now at work on 

 a revision of the Pacific species, while a considerable num- 

 ber of additions collected in Florida by Capt. Donnell Smith, 

 several years ago, have been generously placed at our dis- 

 posal for study and will be examined at an earlv dav. Two 



P 



Riccia Donnettiia Aust. and Tkallocar 

 be distributed in the next issue of 



Hefattcm Americanos through the generosity of Dr. N. _. 

 Bntton, of Columbia College. Working, as time has per- 

 mitted, almost alone for the past eight years, with almost no 

 one who would or could collect in remote parts of the coun- 

 try, the study has at times been very discouraging. But 

 times have changed ; collectors are more abundant, and col- 

 lect more intelligently ; collections come to hand faster than 

 the crowded leisure time of a busy professional life will serve 

 to examine; but that there is an "awakening" in the studv 

 of these neglected plants, is a ground for hope for the future. 

 1 here is as yet only a beginning made ; the field is large 

 enough for any number of workers. 



Syracuse University. 



» The "4th Revised edition " of Gray's Manual on our table containing Sullivant's 

 Mosses and Hepaticx of the Eastern United States bears the date, March 10, 1863. 



