29 
The color of the scales varies in both species from light green. 
to dark brown, and hence cannot be relied on for a character. 
Mr. Clarke, in his paper on the Cyperacee of the Calcutta 
Herbarium maintains the two as species, but I had never been 
able to come to this view until I had critically observed the plants 
growing. 
CYPERUS PSEUDOVEGETUS Steud. Syn. Pl. Cyp. 24 (1855). 
Cyperus virens A. Gray, Man. Ed. 2, 493 (1856), not Michx, 
Cyperus Luzule, var. umbellulatus Britton, Bull. Torr. Club, 
13: 208 (1886). 
Cyperus calcaratus Nees; S. Wats. in A. Gray, Man. Ed. 6, 
570 (1890). : 
This is clearly the synonymy of the common marsh Cyperus 
of the Southeastern United States, which I took to be a variety ; 
of the Tropical American C. Luzule Rottb. The name ca/caratus 
first appears in print by Boeckeler (Linnaea, 35: 558 (1867-68)), 
where it is cited as a synonym of C. arenicola Steud. Mr. Clarke 
writes me that he has seen Steudel’s type of this plant, and that it 
is exactly C. reflexus Vahl. Whether the caécaratus of Nees 
(1867-68) is the same as the calcaratus of Watson (1890) or a 
different plant, I am unable to say, but it does not affect the name, 
Steudel’s psendovegetus being much older. — 
Dvticuium ARUNDINACEUM (L.) is the older name for D. spatha- 
ceum (1...) Pers. the synonymy being as follows: 
Cyperus arundinacea L. Sp. Pl. 44 (1753). 
Schenus spathaceus L. Sp. Pl. Ed. 2, 63 (1762). 
Cyperus spathaceus L. Syst. Ed. 12, 2: 735 (1767)- 
The genus Srenopuyttus Raf. Neog. 4 (1825). 
I have previously remarked on this generic name*, which is 
based on Scirpus stenophyllus Ell., noting that Mr.C. B. Clarke had 
Proposed taking up Kunth’s Bulbostylis (Enum. 2: 205 (1837) asa os 
valid genus and that Rafinesque’s name had twelve years priority. 
Iam now prepared to maintain the view that the plants of which ue i 
Scirpus stenophyllus is the type are generically distinct from both 
rpus and Fimbristylis, differing in the characters pointed out by 
Kunth in 1837, i. e. in Stenophyllus the bulbous base of the sty 
* Bulletin 18: 370 (1891). eure eae ss 
