132 
specimens do agree with their descriptions, which are often neces- 
sarily drawn up from imperfect material without sufficient allow- 
ance for natural variations within specific limits. 
Our California plant differs from the Mexican only in having 
brown stipites and rachises instead of black, a difference of hardly 
more than varietal significance, if even that, and characteristic of 
other species in this genus, notably in WV. wzvea, where the stipites 
and rachises vary from dull chestnut brown to glossy black. 
Sometimes in Californian plants the upper surfaces of the segments 
appear to be more copiously sprinkled with powdery glands, but 
as I have only seen a few Mexican specimens, while several hun- 
dred California plants in all conditions of growth have passed 
through my hands, I cannot say to what extent this excess may 
go. The glands are clearly deciduous in both cases, and in an 
equal number of Mexican specimens it is probable that some 
would be found as thickly coated as any from California. 
441—NoTHOLANA PRINGLEI, n. sp. (Plate LVIIL) 
Rootstocks tufted, clothed with black subulate narrowly winged 
scales with sinuately toothed or variously incised membranous 
margins, those at the base of the stipites broadest; fronds 3 to 8 
inches tall; stipites 1 to 4 inches long, brown, becoming grey with 
age, furrowed along the face and sparingly clothed with deciduous 
scales and white powdery glands, the scales similar to those at the 
base, but paler; laminae 2 to 4 inches long, oblong or ovate lanceo- 
late, bi- to tripinnate with obliquely ascending alternate stalked 
pinnz, more or less distant, the lowermost from ¥% to 1 in. long, 
pinnules sessile or nearly so, segments oblong or roundish, the 
margins strongly revolute, covering the brown sori; rachises 
brown, the primary rachis channelled along the face ; texture sub- 
" coriaceous, both surfaces coated with white ceraceous powder. 
Voxer selskabelig i Kléfter af bratte Kalkklipper over S. Lorenzo i Neerheden af 
Tehuacan (5400') ; samlet i Frugt i December.- 
Udentvivl en af de smukkeste Arter af Slegten, og let adskillelig fra alle hidtil 
bekjendte.’’—Mexicos Bregner, F. Liebmann, Kjobenhayn, 1849, p. 64. 
RemMaARKs.—The above description apparently calls for a taller plant than is rep- 
resented by Mr. Pringle’s, and most of the California specimens, but some of the latter 
in my possession come very near to the dimensions given, and the description given 
by Prof. Eaton in the Bulletin for May, 1873, from Mettenius, recognises some very 
much less.—G. E, D. 
