— 39 — 
? Dissodon rotundifolius Sulliv. in Muse. Cubens 
Wright. Nr. 54. 
Patria. Insula Cuba, ad rupes humidus in viis cavis: 
Wright. 
Characteribus typographice accuratius expositis a S//. 
obtuso multo robustiori certe distinguitur; a Sp. Wull- 
schlägelii statura pusilla affıni differt: caule paucifolio erasso 
stricto humiliore, foliis rotundate-ligulatis non acuminato- 
ligulatis, areolatione foliis, margine distinete recurvo, pedun- 
culo plantulam duplo superante, crasso substricto, theca bre- 
viore sed latiore orificio aequali, teneritate partium omnium 
et peristomio rubustiori stricto. 
Species muscorum novae Mexicanae. Autore 
Dr. Ernest Hampe (pag. 507—510). 
1) Dieranum (Campylopus) Hellerianum Hype. Caulis 
elatusitriuneialis adscendens, basi tomentosus, Strictiusculus, 
sıubrigdus, masculus capitato-incrassatus, interdum comosus, 
lutescens. Folia strieta, eaulina humida paulo patentia, co- 
malia strietiora, omnia lanceolata convoluto-setacea, apice 
parce eroso-dentata; nervo latissimo lamellato folium fere 
totum occupante, pallide rubente; cellulis alaribus paucis 
vesiculosis Juteis, in limbo lutescente anguste ellipticis, versus 
apicem sensim minoribus, caetera desunt. — Hab. Mexico, 
Huatusco 4500° ad arbores leg. C. Heller. 
Ist eine mit Dieranum rosulatum Hpe. verwandte Art, 
von der dem Autor nur 5 Exemplare vorlagen. 
2) Bartramia (Plicatella) ıntermedia Hope. Dioica, 
biuncialis et paulo altior, adscendente erecta. Canlis e basi 
attenuata usque ad comam dense fusco-tomentosus, hie inde 
latere parce ramosus, superne radiato- fasciculatus, radiis bre- 
vioribus intense lutescentibus patulis, vel paulo reduncis, 
acutatis, dense foliatis. Folia caulina tomento intermixta late 
lanceolata, subulato-elongata, basi sulcato-plicata reflexa, 
margine subtiliter denticulato fere subintegerrimo, nervo lu- 
tescente cuspidata, cuspide argutius dentata; cellulis basila- 
ribus abbreviato-recetangulis, glabriusculis, caeteris anguste 
parallelogrammicis, nodulis asperis interruptis, lutescente- 
diaphana punctulata; comalia pluries longitudinaliter plicata 
erecto-fexuosa, vel secunda latiora; e basi ovata lanceolato- 
subulata, subtiliter denticulata, margine revoluto, longius 
suleata, nervo percurrente cuspidata, in caeteris caulinis 
simillima; perichaetialia squarroso-patula minora, e basi trun- 
cata late ovata, medio contracta, subito lanceolata, acumine 
convoluta, nervo cuspidata, subula denticulata, basi latere 
sulcato-costata reflexa, cellulis inferioribus laxioribus, rectan- 
