440 
23. 
Bryum (Rhodobryum) limbato-marginatum n.sp.; cespites humiles 
lati valde intrieati lutescentes tomentosi; caulis pusillus tenellus 
nudiusculus apiee ıninute rosulatus; folia siecitate valde eontorto- 
complicata minuta madore laxe patula, e basi longiuscula angusta 
spathulado-ovata in acumen breve plus minus reflexum acutum 
excurrentia, concava, ubique latiuscule limbato-marginata ad acumen 
solum breviter dentieulata, nervo pro folio erassiusculo viridi in 
aristulam percurrente exarata, e cellulis parvis longis laxiuseulis 
“ utrieulo primordiali valde repletis reticulata. Reliqua ignota. 
24. 
25. 
Habitatio. Insulae Hawaiicae, sine loco speciali: Dr. W. 
Hillebrand. 
Foliis parvis teneris rosulam minutam sistentibus lato-margi- 
natis vix denticulatis facile cognoseendum. 
Bryum (Erythrocarpidium) megalostegium Sulliv. in Exped. Wilkes 
p- It. 7. 
Habitatio. Insulae Hawaiicae, Mauna Loa, in declivibus syl- 
vestribus. Hb. Sullivant; West Maui, Kanapali, Aug. 1870 et 
auf Lavatuffe (1872) in loco non designato: Dr. Hillebrand; 
insula Oahu, inter Campylop. pertristem: F. L. Clarke. 
Bryum (Senodictyum, Cruda) plumaefolium n. sp.; cespites polli- 
cares laete virides laxi basi solum tomentosuli; caulis simplex 
angustifrondeus flexuosus eleganter plumosus; folia caulina sicei- 
tate atque madore laxe patula parva setosula longiuseula angustata 
lineari-acuminata in subulam tenuem aristatam acutam attenuata, 
carinato-concava, nervo angusto distincto flavido in subulam per- 
eurrente calloso-exarata, margine erecto apice solum obsolete 
denticulata, e cellulis angustissimis longiuseulis flavo-chlorophyllosis 
tenuiter membranaceis teneris areolata; perichaetialia minora in 
gemmulam minutam congesta brevia; theca in pedunculo elongato 
tenui rubro flaceido subinelinata, e collo longiuseulo elavato-ovalis 
angusta microstoma, operculo conico obtuso. Caetera ignota. 
HHabitatio. Insulae Hawaiicae, East Maui, Monte vulcanico 
Haleakala, 7500 ped. altum: D. D. Baldwin 1875. 
, Species elegans, fronde eleganter plumosa, foliis lineari-acu- 
minatis et fruetibus longe pedunculatis clavatis facile distinguenda. 
.. Bryum cespiticium et Br. Indieum, quae Sullivant in Expe- 
ditione Wilkesiana p. 10 inter Muscos Hawaiienses enumeravit, 
species novae probabiliter erunt. 
’n . . .. . . - . ’ 
. Thysanomitrium Hawaiicum n. sp.; cespites lati pusilli pollicares 
Yigidissimi; caules steriles tenues subulati lutescentes vel aetate 
crassiores nigricantes turgiduli, fertiles basi nigricantes turgescentes 
in comulam minutam tenuiter julaceo pedunculatam exeurrentes; 
folia caulina e basi parum decurrente cellulis alaribus planis non- 
nullis laxis majusculis aureis ornata angusta in laminam anguste 
eymbiformi-oblongam acuminatam strietam integerrimam sed dorso 
summitatis angustissime alatam superne convolutaceam productal, 
nervo subangusto planissimo pallido striato in acumen obtus« 
mucronatum pereurrente, cellulis elliptieis in membranam duranı 
