35 



from Baron F. von Mueller, and which he, for want of 

 time, had not been able to turn to account, for scientific 

 purposes. According to arrangements made between us, 

 we shall both take the responsibility for the new species 

 we, have proposed, but the descriptions have been worked 

 out by myself alone. 



With regard to the present paper, I am, as before, 

 greatly indebted to my much esteemed friend, D:r C. Mueller, 

 who always, with the greatest readiness to help, gave me the 

 benefit of his rich experience. Some of the species, given in 

 the following Kst, were proposed by him. Not being able, 

 for want of time, to describe them himself, I have, with 

 his permission, undertaken the task. 



I am much' pleased to state that D:r G. Venturi, the 

 great expert in the difficult family of Orthotrichacece, has 

 had the kindness to determine these, and to work up the 

 descriptions of the new species among them that are given 

 in the following list. 



I close these lines with expressing the hope that my 

 bryological friends will oblige me in the future by kindly 

 sending me, as before, the material for a continued study 

 of the bryologial flora of Australia. 



24. Archidium brisbanicum Broth. in Bail, Contrib. 

 Queensl. Fl., Bull. n. 7, p. 23 (nomen solum). 



Autoicum ; gregarium, pusillum., viride ; caulis brevissi- 

 mus, erectus, stolonibus destitutus; folia inferiora minuta, 

 remota, reflexiuscula, comalia conferta, multo majora, erecto- 

 patentia, e basi lanceolata subulata, nervö excedente bre- 

 viter aristata, marginibus erectis, superne denticulatis, nervö 

 basi c. 0,0 5 mm. lato, in aristam brevem denticulatam pro- 

 ducto, cellulis laxe prosenchymaticis, rhomboideis, basilaribus 

 rectangularibus, omnibus pellucidis, dilate chlorophyllosis ; 

 bracteae perichaetii foliis similes, sed longiores, nervö multo 



