lines ; occasionally it bears toward tlie margin a few processes. Both 

 kinds of fruit are Tnarsi;inal, very rarely on tlie disc. The cystocarps are 

 ovate, shortly pedicellate, opaque, with thick walls, and contain a tuft oi 

 narrow-pyriforui spores. The sllcltldla are linear-laneeolate, acute, densely 

 cellular, containing; tetraspores in a double row. The colour is a pale blood- 

 red, becoming darker or even brown in the herbarium. The subdance is 

 firmly membranous, rather rigid when fresh, shrinking in drying ; and the 

 frond very imperfectly adheres to paper. 



I am induced to figure this plant, because the figure given in 

 ' Nereis Australis,' though faithful in its details, is incorrectly 

 coloured, and does not represent the cystocarpic fruit {ceramidla), 

 which were unknown to me when it was prepared. The mar- 

 gmal cilia are much more abundant in fronds that produce sti- 

 chidia, as in the figure above r^jferred to, than in those that bear 

 ceramidla, one of which is here represented. Both are very 

 liable to be disfigured by parasitic growths, especially by Melo- 

 hesice and Lepralice, and sometimes the whole membrane is so 

 completely incrusted, that it requires a sharp eye to recognize 

 the species through the scurf. 



Though abundant on the north coast of Tasmania, this very 

 distinct plant has not yet been detected on the opposite shores 

 of Bass's Straits. By collectors in Tasmania it is called " the 

 Cactus," from a fancied resemblance in shape between its phyl- 

 lodia and the joints of an Opuntia. 



Fig. 1. Lenormandia mauginata, — the natural size. 2. Fragment of a leaf, 

 with marginal ceramidla. 3. Section of a ceramidium. 4. Spores, from the 

 same. 5. Fragment, with marginal stichidia. 6. A stichidium. 7. A 

 tetraspore : — all magnified. 



