20 
MUS CI. 
Tribus II. HEDWIGIEÆ Sch. 
Genus I. HEDWIGIA Ehrli. 
1 . II. subreyoluta C. MüII. sub Pilotricho in Syn. II, p. i 65 . 
Ad saxa, prope Malpays delà Joya (Schiede); sine loco nataii (Ehrenberg). 
Genus II. HEDWIGIDIUM Br. et Sch. 
I. H. squarkulosum Br. et Sch. (Neckera sphœrocarpa C. Müll. Syn. Il, p. io 5 ). 
. Mejico (C. Ehrenberg in herb. Montagne). 
Genus III. BRAUNIA Br. et Sch. 
1. B. secunda Br. et Scli., C. Müll. sub Neckera in Syn. II, p. io 3 . 
In moutibus apricis, juxta Toluca, ad imam montem apice perpétua nive obtectum (Humuoi.dt et Bonpland in 
herb. Mus. Par.); in saxis prope Malpays de la Joya (Sciiiede, sept. 1829);») aliis locis (C. Ehrenberg, Andriedx 
in herb. Montagne); in saxis, San Pedregal, prope San Geronimo, aug. i 865 (Bourg. n° 687); prope Santa 
Fe, in vallc Mexicensi (Bourg, n” i3ag). 
2 . B. Andrieuxii î. c. — Monoica; cæspites laxi elongali, plantas vage ramosæ, stolonibus microphyllis 
declinatis, radicantibus. Caulis densifolius, foliis siccis erectis imbricatis, udis rellexis, horizontalibus haud 
secundis. Folia late ovato-acuminata, apice obluso eroso, distincte longitudinaliter plicata, margine erecto 
haud reflexo. Flores masculi discoidei, antheridiis et paraphysibus plurimis. Folia perigonialia late ovaLo- 
apiculata apice erosa, interna minima. Folia perichætialia vaginantia longe lanceolala, maxime longitudina- 
I i 1er plicata, apiculo sensim attenuato erecto eroso. Capsula in pedicello glabro dextrorsum lorto, elliplica, 
sub ore conslricta. 
B. sciuroidi similiima, differt autem foliis perichælialibus angustioribus longioribus, distinctissime longi- 
tudinaliter plicatis, floribus masculis discoideis, foliis perigonialibus omnibus apiculatis apice erosis. A 11 . 
macropelma jam foliorum forma, a B. Liehmanniana jam capsula longe distat. 
In monte San Felipe, prope Oitjaca (Andrieux). 
3 . B. Liebiuanniana Sch., C. Müll. sub Nechera in Syn. Il, p. G68. 
In monte Orizabensi (Liebmann); in sylva del Dcsicrto Viejo, nov. 1 865 (Bourgeau). 
Tribus III. PTYGHOM1TRIEÆ Sch. 
Genos I. PTYCHOMITRIUM Br. et Sch. 
1. P. lepidomitrium Sch. , C. Müll. sub Brachysteleo in Syn. I, p. 767. 
In monte Orizabensi (Liebmann, Galeotti 11° 6379 in herb. Mus. Par.); in valle Mexicensi, prope San 
Nicolas (Bourg. n° i353). 
2 . P. Reiciienbaciiianum Ltz sub Brachysteleo in Pu g. nov. spec. exol. . . — P. polyphyllo proximuin, a 
quo autem differt habitu graciliore (haud, ut in illo, subscopario) , foliorum celiulis minutioribus, magis in- 
crassatis, margine in apice argutius serralo, pedicello brevi, capsula anguste cylindracea, apice calyptræ 
scabro. 
Ad urbem Mejico (Sciimltz). 
3 . P. serratum Sch. , C. Müll. sub Brachysteleo in Syn. I, p. 768. 
In monte Orizabensi (Liebmann). 
