1095 



Bartramia tenuis, Tayl. Caule caespitoso, erecto, subsimplici, gra- 

 cili : foliis laxis, erecto-patentibus, ex lata ovata basi lanceolato-sub- 

 ulatis, serrulatis, flexuosis, subsecundis : capsula rotuudato-oblonga, 

 cui-vato-ceniua, striata, basi hinc gibba; operculo convexo, umbonato. 



Norfolk Island, Allan Cunningham. I had received this, collected 

 in 1 826 by Richard Cunningham, in New Zealand. 



Tufts wide, pale yellowish-green. Stems scarcely 1 inch high, very 

 slender, reddish-brown. Leaves rather distant, with fine acuminated 

 tops, variously bent. The capsule under a lens shows a reddish- 

 brown reticulation on the surface, with cells rather large. Under each 

 dark brown, lanceolate, transversely barred tooth of the outer peri- 

 stome, lies a pale yellowish tooth of the inner peristome, which is 

 bifid, but with segments unequal in size. 



The present ranks near some of the smaller varieties of Bartramia 

 foutana, Swartz, but then the leaves are longer, narrower, and with 

 the denticulations less prominent. 



Hypnum excavatum, Tayl. Caule decumbente, surculis erectis, 

 fastigiatim ramosis : foliis imbricatis, patentibus, concavissimis, rotun- 

 datis, breviter apiculatis, integerrimis, basi binerviis : capsula ovata, 

 inclinata ; operculo conico, rostellato. 



Five Islands, coast of New South Wales, Allan Cunningham. I 

 had the same, collected in "Australia, 1823," by Fraser, through the 

 kindness of Dr. R. K. Greville. 



Tufts loose, very ]>ale green. Stems either decumbent, with short 

 branches ; or the shoots erect, dendroid, with branches fascicled above. 

 Leaves very round, in the dry state pitted in, when moistened, all 

 equally tumid ; they are set horizontally ; they are shining from their 

 great convexity. The capsules have a slight struma, are unequal in 

 their sides, ovate, bent to one side. The pedicels are smooth : the 

 perichgetial leaves differing widely from the cauline in their lanceola- 

 to-acuminate shape. 



The present may be readily known from its allied congener, Hyp- 

 num Arbuscula, Hooker, by the smaller size of all its parts, its more 

 decumbent habit, and above all, by its more considerable although 

 more slender pedicels. 



Usnea scabrida, Tayl. Thallo erecto, scaberrimo, pallide cinereo- 

 flavescenti, fibrillis confertissimis, patenti-curvato-adscendentibus, 

 subramosis : apotheciis demum planiusculis, ciliis confertis radianti- 

 bus margine dorsoque tectis ; disco stramineo-albido, pulverulento. 



