59. 
60. 
61, 
451 
. Ex habitu Orthotrichi Sturmit, ad quod Cl. Sullivant spe- 
ciem in Exped. Wilkes p. 7 posuit. 
Orthotrichum (Euorthotrichum) Hawaiicum n. sp.; monolicum; ce- 
spites pusilli luteseentes; caulis brevis ramulis arete appressis 
parce divisus; folia caulina arete imbricata surculum veluti com- 
planatum sistentia madore parum reflexo-patula, e basi fibrosa la- 
tiuscula ovata in laminam longiuseule latiuseule acuminatam mar- 
gine undulafam acutatam produeta, margine e basi usque ad 
acumen et ultra valde revoluta integerrima sed tenuiter papillosa, 
uervo pallido angusto ante summitatem evanido carinate exarata 
concava, e cellulis parvis angulate rotundis basi longioribus ellip- 
ticis areolata; perichaetialia longius acuminata; thecae aggregatae 
emersae brevissime pedicellatae cylindrieae, calyptra pilosa ob- 
tectae; peristomium duplex: dentes externi lutei perbreves incurvi, 
interni: cilia 8 longiuseula margine valde ruguloso-exesa. 
Habitatio. Insulae Hawaiicae, sine loco speciali sed verosi- 
militer e monte vulcanico Haleakala: Dr. Hillebrand. 
Species tenella pulchella propria. An Orth. leiocarpum Sulliv. 
in Exped. Wilkes p. 7? 
Macromitrium (Eumacromitrium, Torquescentia) piliferum Schw. 
Suppl. IT. IT. I. p. 66 t. 172. — ©. Müll. Syn. Muscor. I. p. 730. 
Habitatio. Insulae Hawaiieae, loco non indieato legerunt 
Menzies et Gaudichaud; Oahu: Meyen; HonoluluN.J.An- 
dersson in Exped. Eugeniae; Molokai: Dr. W. Hillebrand; 
in leco non indicato F. L, Clarke ad arbores 1886. 
Macromitr. (Eumacromitr., Torquescentia) plebejum n. sp. ; dioicum; 
cespites latissime expansi sordide virides valde intrieati; caulis 
longe repens, ramis ascendentibus simplicibus pusillis sed turgidis 
summitate plus minus acutis densissime aggregatis divisus; folia 
caulina torquescenti-imbrieata apieibus summis erispatulo - patulis, 
madore ramulum globiformi-turgescentem sistentia patula, brevia. 
stricta robustula, anguste oblonga obtusatula brevissime mucronata, 
vetustiora mucrone aristiformi brevi sed facile deeiduo obtusis- 
sima, profunde canalieulato-concava integerrima, nervo pallescente 
deinque ferrugineo angusto ante summitatem evanido exarata, e 
cellulis minutissimis punctiformi rotundis e basi ad medium flavido- 
pallidis superne obscuris earnosulis areolata; perichaetialia sensim 
acuminata, subula aristiformi facile decidua praedita; theca in pe- 
dicello brevissimo exserta, calyptra pilis strietis appressis et pa- 
tentibus hirtissima. Caetera desunt. 
Habitatio. Insulae Hawaiicae, in loco non indicate: Dr. W. 
Hillebrand. 
Muscus quoad eolorem plebejus, quoad autem foliorum con- 
figurationem et calyptram hirtam proprius. 
Macromitrium (Eumacromitr., Torquescentia) emersulum n. sp.; 
cespites lati planiusculi ferrugineo-lutescentes valde dense intricati ; 
rami pusilli tenues; folia caulina torquescenti-imbricata madore 
turgescenti-patula parva brevia, e basi plus minus ovata latiuscula 
