Germination and Ch'owth of Species of Salvia. 371 



day of germination ; whilst, on the 130th day after the seeds 

 were sown, when the elongated character was particularly 

 noted, these axillary buds had developed leaves of some 

 size as compared with the leaves of the primary axis. 



In >S'. Heeriana, similarly, the leaves of the secondary buds 

 were well developed on the 130th day after the seeds were 

 sown, or the 114th after the germination of the species was 

 recorded. 



In S. triangularis secondary buds were developed in all the 

 axils, some shewing two pairs of leaves well developed. 



In S. hispanica they were evident, but perhaps their 

 appearance in *S'. interrwpta was the most remarkable. 

 Hardly more than ten days previously we had noticed this 

 species as of the intermediate class, C. ; whilst on the 130th 

 day, or the 114th after germination, the last node was 

 20 mm. from the bases of the petioles of the cotyledons, 

 whilst buds appeared in the axils of the first and second 

 leaves, as well as in the axils of the cotyledons. 



Clearly the development of internodes, so conspicuously 

 related to the appearance of secondary buds, had a certain 

 advantage in raising the leaves of the primary axis out of the 

 way of the secondary buds so as not to interfere with their 

 growth. 



The truest comparison as to the total amount of growth 

 within the same limit of time and under the same conditions 

 is, however, best afforded by the data previously given as to 

 the sizes of the leaves. It is not, however, a profitable thing 

 to make here such comparisons at any length. The con- 

 ditions were somewhat different, owing to the crowding of 

 the individuals together ; but it appeared as if those of 

 " squat " habit (Table A.) grew most quickly, producing the 

 largest amount of leaf surface within the given time. The 

 biennial, S. ceratophylla, developing horizontally-placed leaves 

 of an exceedingly coarse nature, was of all the most remark- 

 able, on account of the vigorous rate at which it grew. 

 The annual, S. hispanica, shewed no such zealous haste to 

 develop. 



It might be suggested that the rosette of horizontal or 

 cauline leaves is a saving of time and perhaps material 

 to the plant, but this is hypothetical. Some, or most, of the 

 species here considered shewed evidently an amount of 



