is to a degree not truly represented in Bulliard's figure and in the 

 usual drawing. The section of the arm is not sub-cylindrical as 

 shown by BulMard, but flattened on the outer surface, and on the 

 inner side the cells are larger and irregularly developed and torn. 

 This is a structure somewhat similar to that on which the genus 

 Blumenavia is based, and tends to throw doubt on the validity of the 

 latter genus. The volva of Clathrus is not one uniform, gelatinous 

 membrane, as is the volva of a Phallus. It is composed of a number 



of sections, corre- 

 sponding in shape 

 and size to the 

 meshes of the en- 

 closed young plant. 

 These sections are 

 united by thin. 

 white plates of tis- 

 sue that proceed 

 from the arms of 

 the enclosed plant. 

 \Ve think this 

 structure will be 

 well understood 

 by referring to 

 our sections on 

 the plate. T h e 

 structure has been 

 illustrated and ex- 

 plained by Profes- 

 sor F i s c h e r in 

 technical language, 

 but we believe our 

 readers can get a 

 clearer idea of it 

 from our photo- 

 graphs. The photo- 

 graph. Fig. 160 (which was crowded off our Plate 112), is an inner 

 view of a specimen (the front half cut away), and was made to show 

 the large, torn cells that compose the inner structure of the arms. 



Fig. 160. 



THE GKNUS PHALLUS. This genus is based on the well known and 

 common Phallus impudicus of luirope. It is the type of the Reims, and the 

 genus has been taken as the type of the order from which it derives its name, 

 as well as the common name "phalloid" applied to all these plants. It there- 

 fore seems to me useless, and certainly not in keeping with botanical usaue. to 

 try to abolish a name that has been' so well established. It was Micheli in 

 1729 who proposed the genus and who has the rather doubtful honor of naming 

 it. but lie had a clear conception of it. When Linnaeus attempted to apply 

 binomial names to the universe (not only to plants he knew, but to those he 

 did not know), he made bad work of iti as he did with most fungi. He in- 

 cluded Morchellas in the genus Phallus, plants that have no relation to 

 Micheli s genus. The prestige that Linnaeus justly acquired through his knmvl- 



326 



