398 Transactions. — Botany. 



Flor. N.Z., ii., p. 259, Harvey's description, as some future in- 

 vestigator may meet with a plant which agrees with it more 

 closely than this does. Should this prove to be the case, I 

 would suggest that this be described as a new species under the 

 name S. agardhii. I have deposited specimens of what seem to 

 me to be typical forms of this and of the species of Pleonosporium 

 in the Canterbury Museum, and as they are quite distinct any 

 subsequent worker in New Zealand will readily be able to deter- 

 mine whether any similar form he may find agrees with them or 

 not. 



Callithamnion brachygonum,* Harv., Fl. Nov. Zel., ii., p. 259. 



" 1 or 2 in. high, densely tufted, flaccid, bright carmine-red. 

 Stem subsimple, set on all sides with lateral similar branches, 

 which bear a second or third series of similar rod-like branchlets, 

 the last series of which are clothed with subdistichous plumules. 

 Plumules very narrow, erect, patent, the lower most simply 

 pinnate, the upper gradually longer and more compound, those 

 near the middle of the branches very long and bipinnate. All 

 the articulations are short, those of the stem and branches 

 veinless with narrow endochrome and thick walls. Tetraspores 

 line the inner faces of the ramuli." 



Genus 8. Euptilota (Kuetzing). 



Thallus erect, very richly distichously branched, flattened on 

 both edges, coated with rhizoids in the lower part or nearly to 

 the top, or enclosed in a more or less thick normal cortex through- 

 out its whole length. Shoots of two kinds, (a) of limited (b) of 

 unlimited growth. Those of unlimited growth are alternately 

 pinnate with entirely or alternately pinnatifid or alternately 

 pinnately compound or decompound limited branches, of which 

 some develop into unlimited branches. Apical cell of the un- 

 limited branch diagonally segmented. Sporangia in the upper 

 part of the thallus on short articulated naked stalks, which shoot 

 out singly or in groups, or are united into branched bundles, 

 upon the edges (especially the upper edges) of the limited pinnae. 

 Antheridia (as far as is known) small stout bundles of branches 

 growing out of the edge of the limited pinna'. Procarps on short 

 pinna.', or on the teeth of the pinnae of somewhat enlarged limited 

 shoots near the point. Cystocarps terminal on the short fertile 

 pinna', sometimes apparently laterally placed, enclosed by more 

 or less numerous subsequently developed involucral ramuli. 



The typical species is Enptilota foniiostsissiwa of New Zealand. 



*I have adopted the description given in t lie Flora in preference to 

 the translated description of the Handbook, as the former appears to me 

 to be the more intelligible of the two. 



