POTTIOIDEAE. onTHOTRICHUM. ^ 2439 
-18b. 0. callistomum Fischer-Ooster (Bryol. Europ. 
Fase. 43. t. suppl. HL); monoicum; flos masculus termi- 
. nalis; O. stramineo simillimum; folia caulina latius lan- 
ceolata, acuminata, profunde carinata, ala utraque sùl- 
cata, margine revoluta, dense granulosa chlorophyllosa, 
basi hyalina quadrate et hexagone ad cellularum parietes 
erenulate reticulata, cellulis apicem versus rotundatis, 
nervo angusto, sub apice evanido; theca in ped. perbrevi 
immersa, elliptica brevicolla microstoma lutescens, striis 
8 aurantiacis, sicca evacuata elongata subeylindrica sul- 
.cata, sub ore vix constricta, brunnea, operc. minuto au- 
rantiaco recte acuminato, calyptra pallide straminea gla- 
berrima; perist. d. ext. 8 bigeminati breviores pallidi, in- 
terni cilia 8 lata solida, aurantiaca, apice in discum cen- 
tro pertusum confluentia, cupulam sistentia, persistentia. +. 
Patria. Melvetia, in cortice Fagi sylvae ,Schoren- 
wald" prope Thun: Fischer-Ooster. — Julio. 
Ab omnibus congeneribus perist. interni structura 
memorabili facile distinguitur. 
Xt. Late lanceolata, 
21. ©. Sprucei Mont. I. p. 699. 
Bryol, Europ. Fasc. 42. c. tab. Suppl. 
B. Folia chlorophyllosa. 
1. Tenella. 
29b. 0. Meyenianum Hmp. (in litteris!); monoicum; 
pusillum tenellum dense cespitosum, parce dichotomum, 
pallide virens; folia caulina dense imbricata, madore su- 
bito reflexa, e basi decurrente plus minus ovatà latiuscule 
lanceolata apice ligulate obtusa, juniora acuminata, di- 
stinctius reflexa, margine hic illic flexuoso, usque fere 
ad apicem valde revoluto, integro, profunde carinata, pa- 
rum papillosa, e cellulis multo majoribus grossis incras- 
salis rotundatis, basi quadratis et ad alas decurrentes 
laxis pellucidis areolata, nervo ante apicem evanido; pe= 
rich. similia strictiora, paraphyses numerosas elongatas 
flavidas eingentia; theca ex vaginula breviter exserta 
€, Müller: Synops. musc, frond, 4i 
