OF THE Synopsis FILIcumM 631 
that feature is not uncommon in C triangularis. There are, how- 
€ver, indications in our collections of a third species with white 
powder from Lower California. 
‘2. Ceropteris viscosa (D. C. Eaton) 
Gymnogramme triangularis var. viscosa D. C. Eaton, Ferns 
of N. Am. 2: 16. pl. 40, J. §.  Jaoe 
Stipes clustered from a very short rootstock, chestnut brown, 
shining, slender: lamina more or less pentagonal with 6-7 pairs of 
pinnae which disappear gradually in the more or less tapering 
apex ; lowest pair of pinnae deeply pinnatifid, the lowest basal 
divisions elongate and slightly and irregularly sinuate or lobed, the 
remaining divisions almost entire ; second pair of pinnae pinnatifid 
with the lowest outer division mostly narrow and elongate, upper 
pinnae becoming less and less pinnatifid, the uppermost almost 
entire ; upper surface viscous; lower surface covered with white 
Powder ; sporangia on the veins, soon confluent. 
Hab, California. The following collections have been ex- 
amined : So, California, 1888, /. G. Lemmon, Temecula, I May, 
1893, W. G. Wright; Santa Catalina Island, 1889, Georgia M. 
Rose (all in herb. Underwood) ; Avalon, Santa .Catalina Island, 
March, 1901, Blanche Trask (herb. New York Botanical Garden). 
In the herbarium of Columbia University is a single leaf of this 
Species collected at “San Diego, Dry Hills,” by C. C. Parry, on 
the Mexican Boundary Survey. 
3. CEROPTERIS TARTAREA (Cav.) Link, Fil. Sp. in Hort. reg. bot, 
Berol. cult. 141. 1841 
: Acrostichum tartareum Cav. Descr. de las Plantas, 242. 180r. 
(Type from Peru.) ’ 
_ lab. West Indies and Mexico to Peru. 
In a paper by B. Shimek * this species, wrongly attributed to 
Linnaeus, is reduced to a variety of C. calomelanos as had hitherto 
been advocated by Baker and others, but the two are abundantly 
distinct, as can be seen by the study of any large collection. 
_ 4 Ceropreris PERUVIANA (Desv.) Link, Fil. Sp. in Hort. reg. 
bot. Berol. cult. 142. 1841 
- Gymnogramma Peruviana Desv. Berl. Mag. 5: 329. 
‘ (Type from Peru.) 
| OS Saeer spay Bull. Lab. Nat. Hist. State Univ. Iowa, 4: 191. 1891. 
I8Il. 
