■ D%^ M. C. 'CfnSM^tS&^sd^smli^biis on the 



produced by an internal brown-red granular mass; that the 

 extremities of body were transparent, the hinder pointed, and 

 the fore part rounded. These accounts sufficiently shew that 



" tlie animal has a similar form with the Cercaria viridis of 

 Muller, though the observers say nothing either of the pre- 

 sence or absence 'of the important dark point in the fore- 

 part of the animal, which Nitsch correctly considers as an eye, 

 and which constitutes the specific character of the genus. 



^Weber at Halle found this point in his red animals, hence 

 there remains no doubt as to the genus. Whether the volvox 

 of Girod Chantran be one and the same, with the Enchelys 

 sanguinea has not been determined. 



The colouring of water by means of Oscillatorid major, bt by 

 a species having a close affinity to it, has Iieeen very recently 

 made known to me, and that species has received from Bory 

 St Vincent the name of Oscillatorla Mougeotii. 



To the series of observations now concluded, I annex an ob- 

 servation which I made in 1821 and 1823, at Cairo in Egypt. 

 In the months of January and February, I found, in the garden 

 of Mr de Rosetti, on the soil of a place exposed to the morning 

 sun, large spots of from 4 to 6 inches, and of different shapes. 

 These spots seemed so very like clotted blood, that I fre- 

 quently passed them without being tempted to examine them 

 more closely. The remarkable circumstance of blood being in 

 this part of the garden, at length excited my attention by its 

 '-abundance, and looking at it again, I took up some of it from 

 *"the ground with my knife, and soon perceived on the delicately 

 ** wrinkled sui-f^ce that it was not blood, but a fungus. The 

 Thelephora sanguinea was not known to me ; therefore I sepa- 

 rated a portion of the mass from the soil, to add it to our col- 

 lection of plants. On the following day I had leisure micros- 

 copically to examine and delineate the fresh plants which I 

 collected from the originals, and will publish in the Symholi 

 Physlci. The Thelephora sanguinea, which is accurately dis- 

 tinguished from the other Thelephorae as a Palmella, but has 

 been inaccurately placed among the Algae, is distinguished by a 

 real peridium (a firm epidermis) which is entirely awanting in 



