Dicranum. | l. DICRANEX. 63 
 Bect. 1. Lsocarpus. 
1. D. ANTARCTICUM (C. Mill. Syn. i. 544). Caulis cæspitosus, hu- 
milis. Folia longe anguste subulata, marginibus incurvis integerrimis, 
nervo percurrente levi, cellulis inferne angustis superne ovalibus sensim 
in rotundas transeuntibus, alaribus fuscis ventricosis; perichietialia latis- 
sima, in cylindrum brevem imbricata, apicibus subulatis. Theea in pe- 
dunculo rubro elongato, oblonga, operculo subulato. 
Weisia crispula, Wils. 
Hab. Fuegia, Hermite Island, J. D. Hooker. 
Caulis j-l-uncialis. Folia juniora Inteo-viridia, seniora nigrescentia. 
Pedunculus 3-uncialis. 
Resembles very closely the D. crispulum (Weisia, Hedw.) of 
North America and Europe. 
2. D. FASTIGIATUM (Tayl.). Caulis humilis, ramosus. Folia erecto- 
patentia, incurva, subulato-angustata, marginibus incurvis, nervo percur- 
rente levi, cellulis basi elongatis, superioribus rotundis, alaribus parum 
conspicuis; perichztialia basi late ovata, acuminata, in cylindrum brevem 
convoluta. Theca in pedunculo brevi, ovalis, suberecta, operculo subulato, 
peristomii dentibus brevibus rugulosis, 
Hab. Andes Quitenses, in monte Pichincha, ad rupes prope apicem, 
Jameson. 
Caulis i-j-uncialis, gracilis. Folia lutea, fuscescentia. Pedunculus 
4-linearis. 
3. D. crypropon (Mont. ia Ann. Sc. Nat. ser, 3. iv. 130, Weisia). 
Monoicum; caule fastigiatim ramoso. Folia patentia, anguste lanceo- 
lata, nervo percurrente carinata, marginibus erectis anguste recurvisve 
integerrimis, cellulis basi laxis ad angulos quadratis pellucidis, supe- 
rioribus quadrato-rotundis obscuriusculis ; perichzetialia longiora latioraque, 
erecto-patentia, marginibus reflexis. — Theca in pedunculo brevi, oblonga, 
erecta, peristomii dentibus brevibus rubris. 
Hab. Chili australis, Gay ex Herb. Montagne. 
Caulis 2-3-linearis. Folia sordide viridia, nigrescentia. Pedunculus 
3-linearis. 
The specimens are incomplete, wanting in opercula as well as 
in peristomes ; and unless there should prove to be some consider- 
able difference in that organ this moss must be referred to D. 
cirrhatum (Weisia, auct.), which abounds in North-west Ame- 
rica, and is common in Europe. 
Sect. 2. Holodontium. 
4. D. INERME (Mitt.). Caulis elongatus. Folia faleato-secunda, mar- 
ginibus incurvis integerrimis, nervo lato supra medium laminz indi- 
