BOTANY. 
365 
Sect. Eurynchium, Schimp. 
933. H. prselongum, Dillenius. — Melliss, Capt. Haughton. 
Probably indigenous to St. Helena. 
All the specimens of this Moss are a small depressed form of the 
state which has been sometimes called H. Stolcesii, and do not pre- 
sent any differences from what may be observed on hedge-banks in 
England. The more robust form which is found on stones in rivu- 
lets, in mountainous parts of Britain, is also met with in Madeira, 
and in the Andes of S. America. 
Sect. Brachythecium, Schimp. Bryol. Europ. 
934. *H. athrocladum, sp. nov. — Monoicum. Caulis repens ra- 
mulis quamplurimis brcvibus assurgentibus dense pinnatim ramosus. 
Folia erecto-patentia imbricata, caulina a basi angulis anguste decur- 
rentibus subdeltoideo-cordata, subulato-acuminata, subintegerrima, 
nervo tenuo vix ad medium folii attingente, ccllulis interioribus ob- 
longis ad angulos basalibus rotundo-quadratis areolata ; folia ramea 
densius inserta, magis appressa, ovato-lanceolata integerrima, sub- 
biplicata, nervo usque ad § folii longitudinis producta, perichsetialia 
duplo longiora lanceolato-subulata, apicibus subdenticulatis. Theca 
in pedunculo scaberrimo breviter ovalis inclinata inmqualis, ore 
obliquo. — Burchell. 
A very small Moss, with the habit of the European II. sericeum, 
but more rigid, and with a capsule exactly corresponding to that of 
the section Brachythecium. V ery little of this was gathered, and only 
one capsule seen by Burchell, who marked it Hyjonum athrocladmi , B. 
Thuidium, Schimp. Bryol. Europ. 
935 -j-T. curvatum, sp. nov. — Caulis ascendens erectusve ramis 
brevibus curvatis subsimplicibus pinnatim ramosus, paraphyllis 
brevibus paucis obtectus. Folia patentia incurva, a basi cordata subito 
in acumen latiusculum sequilongum producta, nervo crassiusculo in 
apice evanido carinata, haud plicata, margine inferiore hie illic 
recurvo, ob papillarum prominentia aspero superne minute serrulato, 
cellulis rotundatis obscuris utrinque papilliferis areolata ; folia ramea 
ovato-lanceolata. — ITab. Tristan d Acunha, Milne. 
Very closely resembling the New Zealand I fulvastrum, and 
