600  STEGOCARPI PLEUROCARPI DICRANUM. 
appressifolius filiformis, medio in ramum sterilem elonga- 
tum apice subincurvum filiformem cuspidatum subjulaceum 
et ramum fertilem breviorem vel aequilongum inferne fi- 
liformem apice parum comosum monocarpum divisus; fo- 
lia caulina imbricata, hic illie siccitate paulisper et ma- 
dore vix falcata D. Zollingeriani, sed superne obsolete den- 
ticulata et summo apice ob dentes duos diviso, cellulis 
parvis incrassatis rhombeo - quadratis, basi longioribus 
rectangularibus, plus minus incrassatis, alaribus in ven- 
trem distinctissimum hemisphaericum deciduum | fragile 
congestis, intense fuscis laxis; perich. D. Zollingeriani, sed 
basi densius reticulata, stricta, summo apice bidentata ; 
theca in ped. brevi rubente tortili erecto, madore descen- 
dente demissa, parva, gibbose ovalis, annulata, leviter 
sulcata, operc. conico oblique subulato, calyptra basi parce 
breviter fimbriata. 
Patria. St. Helena. Kunze donavit. 
A D. Zollingeriano affini caract. descriptis facile dis- 
cernibile. 
6. Uncinata. 
89. P. denudatum Brid. I. p. 403. — Perist. dentes 
ad basin usque fissi. 
89b. D. Mitteni C. Müll; elatum laxe cespitosum di- 
chotome ramosum, apice falcatum , lutescens inferne fus- 
cescens ; folia caulina secunda falcata, e basi lata sensim 
longissime acuminata capillacea, concava, laevia, basi 
cellulis alaribus conspicuis; perich. basi convoluta; theca 
in ped. flexuoso erecto oblonga laevis, operc. conico su- 
bulato, calyptra basi fimbriata. +. 
D. erectum Mitten in Lond. Journ. of bot, 1851. p. 53. Nomen 
jam usum mutandum fuit, — — Thysanomitrium macrophyllum Wils. 
in schedulis ad Mitten. s 
Patria. Prope Quito: W. Jameson. 
Ex obs. Mitteni D. uncinato et denudato affine, sed 
muscus late cespitosus, habitu D. majus spectans. 
91. D. stenocarpus C. Müll. pro JJ. stenopus legatur. 
