162 Dublin Microscopical Club. 



form reddish, variously lobed, more or less irregularly ramifying 

 " shapeless " little masses. These were of some toughness and 

 rigidity on pressure, so that it was not a little difficult to compress 

 a portion for a closer examination. This accomplished, however, 

 it was seen that the plant owed its brownish colour to the toughish 

 lobed matrix, as described, in which were sparsely imbedded lines 

 of minute spherical phycochromaceons cells of a light colour. 

 Whether this may be regarded as a mature plant or only a " state " 

 would seem as yet not very readily to be decided. It had clearly, 

 however, nothing to do with the so-called Bacterium ruhescens (Lan- 

 kester). Were a minute PoJ>/coccus pulled out here and there into 

 a branched or lobed configuration, and the contained cells, instead 

 of being in a single cluster, become run into lines following the 

 prolongations, and supposing the containing matrix to assume a 

 reddish colour, something like our plant would be the result. 



Torula sporenclomma and Cystopus candidus exhibited. — Mr. G. 

 Pim showed Torula sporendonerna {=Sporendonema casei) from 

 some old cheese at the Albert Farm, Glasnevin. It is not uncommon 

 on very old cheese, and seems to be a somewhat aberrant member 

 of the genus Torula. 



He also showed the young oospores of Cystopus candidus, the 

 white rust so very common on the cabbage tribe. They were 

 obtained by allowing diseased leaves to rot in a damp place. 



Dennocarpa praslna, Bornct, new to Ireland. — Dr. M'Nab exhi- 

 bited specimens of Dermocarpa prasina. Born, et Thur., collected at 

 Seapoint, co. Dublin, in July 1875, attached to Poh/siphonia fasti- 

 giata. This species has not as yet been recorded from Ireland ; but 

 Mr. G. W. Traill (Proc. Eoy. Dubl. Soc. n. s. vol. iii. p. 291, 1882) 

 mentions that Dermocarpn p)rasina occurs on Catcnella opuntia, in 

 the Firth of Forth, in the month of January. 



Structure of Leaf of Byblis linijlora. — Dr. M'Nab also exhibited 

 part of a leaf of Byhlis linijlora, Salisb., a portion of a dried speci- 

 men collected by Robert Brown (Iter Austral. 1802-5). The 

 leaf is covered -Rith small, long-stalked glands. The glandular top 

 consists of from eight to sixteen cells, and closely resembles that of the 

 hairs of Pinguicula vidyaris. Drude, in his jjaper on Insectivorous 

 Plants in Schenk's ' Botanik,' p. 110, mentions that Byhli.'iyiyantea, 

 Lindl., has the long filiform leaves closely covered with very short- 

 stalked, small digestive glands ; so that B. linijlora differs in having 

 very long-stalked, small digestive glands sparingly scattered over 

 the surface of similar linear leaves. 



March 19, 1885. 



Chlorocladus nustraliensis exhibited. — Dr. E. Perceval Wright 

 exhibited moxmtings of Chlorocladus australiensis, Sender. This 

 interesting green algal form, discovered by Edward Dacmel at Cajje 

 York, Aiistralia, had been described by Dr. W. Ponder. It appeared 

 to be very rare, and Dr. Wright was indebted to Baron F. von Miiller 



