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NOTES ON CURRENT BRYOLOGIGAL LITERATURE 
A. LuisiER — Fragments de hryologie iberique. (Broteria ser. Bot. 19: 5 — 11. 
192 1). The article deals with the enumeration of the rnosses of Ofia, Spain, 
including the results of a recent collection and a resume of the previously known 
species. At the end of the article there is a more extended discussion of the 
distribution in the Spanish peninsula of Trigueirella arapilensis Luis., Brachy- 
menium lusitanicum (Luis.) Hagen, and Claopodium Whippleanum SuU. 
A. LuisiER — Les Mousses de Madere. (Broteria ser. Bot. 19: 36-48. 
1921.) This portion of the series of articles, already noticed several times in 
the Bryologist, contains the keys to the earlier portion of the family Pottiaceae. 
GoNCALO Sampaio — Novas contrihuigoes para 0 estudo dos liquenes Portu- 
gueses. (Broteria ser. Bot. 19: 12-35. 1921). This is a list of 74 additions 
to the Portuguese lichen-flora, each species being accompanied with brief des- 
criptive notes a'nd a careful citation of authorities. The following are, judging 
from the method of citation, new combinations (the authority for the binomial 
is Sampaio in each case): Buellia indissimilis (Nyl.), Lopadium athalloides (L. 
Newtoni Samp., Lecidia athalloides Nyl.), Pachyphiale carneolutea, Bacidia 
Nitschekeana (Stiz.), Bacidia mesoidea (Nyl.), Catillaria nigroclavata (Nyl.), 
Lecania cyrtellina (Nyl.), Lecanora gerezina (L. tristis Samp, non Merezk). Ac- 
arospora Zahlbruckneri and Lecanora lishonensis are proposed as new. Keys are 
given for the separation of Lecidia lithophiloides Nyl., and of L. viridans Tw. from 
allied apecies. 
Malta, N. — Versuche liber die Wiederstandfdhigkeil der Moose gegen Aus- 
trocknung. (Acta universitatis latviensis 1: 125-129. fig. j-5. 1921). — Many 
xerophilous mosses are capable of renewed growth, even after remaining a long 
time in the herbarium, if naturally dried. The growth is usually from dormant 
buds, rarely from the apical cell, and produces rhizoids with brood bodies, sec- 
ondary protonema, or even vegetative shoots. Various species of Grimmiaceae 
and Orthotrichaceae show great resistance to drying: Anoectangium compactum 
produced new growth after being dry for 19 years, but most other species ex- 
perimented with were only one to six years in the herbarium. Spores, as would 
be expected, show the greatest vitality, those of Grimmia pulvinata germinating 
after being dry almost seventy years. A short bibliography follows. 
Malta, N .—^Oekologische und floristische Studien iiber Granitblockmoose in 
Letlland. (Acta universitatis latviensis 1 : 108-124. 1921). Floristically, granite 
erratics in the lowlands are interesting from the presence of montane species; 
ecologically, because the restricted area and constant character of the substratum 
permit easy recognition of the influence of outside characters; care must be 
taken to distinguish between the true granitic flora and that of the layer of 
humus or soil above the rock. A list of 15 hepatics and 96 mosses is given as 
comprising true granite dwellers, a discussion of the colonization of such blocks, 
and the stability of the forms in open situations. Four associations of mosses 
are recognized: three conditioned by relative exposure to sunlight, the fourth, 
(hydrophytic) by abundance of moisture. There is a bibliography of ten titles • 
