BOTANICAL GAZETTE. 164 



601 hrs. leaf completely dried.* 



Ilxperiment No. 4. — A ]jiece of wood was placed on the 

 center of a leaf at 2 p. m., June 6th, 1879. — 

 60 niin. n > change. 



75 " slight inflection of the submarginal tentacles. 

 18 hrs. most of the submarginal and central tentacles were inflect- 

 ing slowly. 

 24 " there was hardly any change from the last. 

 38 " the submarginal tentacles had passed through an angle of 

 aljout 45 degrees; no change in the marginal tentacles; no 

 secretion. 

 73 " all the tentacles were reflexed and natural. 

 144 " for some reason the leaf seems to show some signs of dying. 

 175 " leaf with secretion on tlie tentacles. 

 185 " lear' perfectly natural. 



ExPERiML-.NT No. 5. — Placed upon a leaf a minute larva of 

 Haltica chalytca (about y^ inch long), at 8 a. m., June 6th, 1879. — 

 30 min. all of the central tentacles were bent so as to touch the spec- 

 imen. 

 60 " the submarginal tentacles had passed through an angle of 



45 degrees. 

 4 hrs. all of the submarginal tentacles were inflexed and many of 



them touched the specimen. 

 10 " nearly all the tentacles were inflexed, but only the submar- 

 ginal and central ones touched the specimen. 

 22 " the tentacles showed signs of expanding. 

 29 " the edges ot the leaf, submargmal, marginal and disk ten- 

 tacles on one side inflected over the s]Decimen. 

 67 " simplv the submarginal and marginal tentacles nearest the 



s]jecimen inflected and touching it. 

 73 . " nearly all reflexed. 

 94 " all reflexed. 



171 " leaf with secretion on the tentacles. 

 178 " perfectly natural. 



A Reformed System of Terminology in Cryptogams.— A pa- 

 per was read lately before the British Association which suggests a very 

 simple system of terminology for the reproductive organs in Cryiito- 

 gams. The authors are A. W. Bennett and George Murray. An 

 abstract of it is given in the Journal of pjotany for November. 



In the first place, a spore is defined as "(?;/r cell produced by ordi- 

 nary process of vegetation (and not by a union of sexual elements) wliich 

 liecomes detached for the purpose of direct vegetative reproduction." It may 

 be the result of ordinary cell-division or of free cell-formation. 



In the terminology of the male fecundating organs very little 

 change is necessary. The cell or more complicated structure in which 



-The molds mentioned in this experiment and in No. 1 seem to l)e peeiiliar to this 

 plant. I have carefully examined them, and wili describe tiiem further on in a future 

 ai'licle. 



