with rounded axils and subulate, acute apices. The branches are sometiraea 

 nearly destitute of lateral ramuli, but usually are furnished with them in 

 greater or less number : these are 6-10 lines long, issuing at right-angles 

 from the branch, and extending either horizontally or arching backwards, 

 or very often strongly hooked at the point, and clasping, the longer ones 

 becoming tendril-like. Concepiades are formed in short, lateral rarauli, 

 generally just below the apex, which extends beyond, like a horn, on the 

 pericarps ; the flacentce are numerous, and form a lax network, filling up 

 the cavity, and bearing the scarcely tufted spores at intervals over the whole 

 surface. The ^nedullary stratum is copious and dense, and the cortical 

 thick and strong. The colour is a dark brown-purple, becoming browner 

 or blackish in the herbarium. The substance is firm ; the frond shrinks in 

 drying, and but imperfectly adheres to paper. 



My first acquaintance with this plant was from a small speci- 

 men several years ago communicated by the Rev. Mr. Ewing, 

 of Hobarton, to Mr. Gould, the ornithologist, and then named 

 by me in manuscript as a new species of Acanthococciis, and 

 dedicated to its discoverer. Afterwards, having miyself collected 

 the plant abundantly in the habitats above given, I was struck 

 with its general resemblance in habit and cauline structure to 

 the species of Mi/chodea, and hastily supposing an error in the 

 former analysis, transferred it, without further examination of 

 the ci/stocarp, to the genus Mi/chodea, and published it as M. 

 hamata, in Fl. Tasm. But having occasion to make a more care- 

 ful dissection, when preparing the figure for the present work, 

 the structure of the cystocarp, repeatedly examined, has convinced 

 me that my earliest analysis was correct, and I have consequently 

 restored the name first given. It seems to be quite distinct from 

 any described species. 



Y\g. 1. AcANTHOCOCCUS EwiNGii, — the natural size. 2. Section through a 

 cystocarp. 3. Portion of the placental network, with the spores in situ. 

 4. Transverse section of the frond : — magnijied. 



