1890.] Recent Literature. 1055 
marshes and meadows. Some of these are plainly forms of upland 
origin which have accommodated themselves to their saline surround- 
ings, and been thereby slightly changed in structure and appearance, 
so as now to be evidently distinct from their inland neighbors and 
relatives, while others appear to be very distinct from any other living 
orms."' 
The sequence of the orders of flowering plants is that adopted by 
Bentham and Hooker in their ** Genera Plantarum," with the excep- 
tion that ‘‘the class Gymnospermz has been moved into its more 
natural position at the extreme end of the flowering-plant series, and 
immediately before the fern allies, with which it has more affinity than 
with the willows and poplars, next to which it has generally been 
placed." In the citation of names the law of priority is rigidly fol- 
lowed, ** the oldest specific or varietal name available being retained, in 
whatever genus the plant is located, or whatever its rank as species or 
variety." As to the double citation of authorities the author says : 
“The method adopted of citing the original author of the specific or 
varietal name—the only permanent portion of the binomial—in a 
parenthesis tells us who first named the plant, while the added name 
behind the parenthesis shows who first brought the names together in 
their present combination. This method has, with slight modifications, 
been generally adopted by zoologists and by students of fungi, alge, 
lichens, and mosses, and its general use in botany tends to bring all 
biological nomenclature into harmony." 
It may be of interest to note some of the changes of names to be 
observed in this catalogue, as follows : 
Anemone pennsylvanica L. (of Gray's Manual) = A. dichotoma L. 
Nymphea odorata Ait. (of Gray's Manual) = Castalia odorata 
(Dryand.) Greene. 
Nymphea reniformis DC. (of Gray's Manual) = C. tuberosa (Paine) 
Greene. 
Nuphar advena Ait. f. = Nymphaea advena Soland. 
Nuphar kalmianum Ait. = Nymphaea microphylla Pers. 
Dicentra is given as Diclytra. 
Adlumia cirrhosa Raf. — A. fungosa Greene. 
Acer saccharinum Wang. — A. saccharum Marsh. 
Acer dasycarpum Ehrh. = A. saccharinum L 
Carya alba Nutt. = Hicoria ovata (Mill.) Britt. 
Carya tomentosa Nutt. = H. alba (L.) Britt. 
Carya microcarpa Nutt. — H. microcarpa S ) Britt. 
Carya ze Nutt. — H. glabra (Mill.) Bri 
