173 BOTANICAL GAZETTE. 



growing in my study window, and for a week watched them and 

 noted results. I made a careful observation four times every twenty 

 four hours, viz: at 8 a. m., 12 M., 4 p. m., and 8 P. M. Indicator 

 No. I was attached to a very young internode, while No. 2 was at- 

 tached to one which had already elongated somewhat. The silk 

 thread was carefully loo])ed under the bases of the leafstalks at the 

 summits of the internodes, in such a way as not to produce a con- 

 striction of the stem. The record was kept in degrees of the arcs, 

 and was transferred to profile paper, the horizontal distance represent- 

 ing time and the vertical the aggregate growth. In this way instruct- 

 ive diajzrams were obtained for study and comparison. It was at 

 once evident that the curve of growth for the day was much steeper 

 than that for the night, the percentages ranging from day growth 59.6 

 and niglit growth 40.4, to day growth 52.2 and night growth 47.8. 

 These figures can convey scarcely any idea of the constant and mark- 

 ed difference between the day growth and night growth as shown in 

 the curve of growth upon the diagram. By modifying the attachment 

 of the thread, by attaching several instruments to different internodes 

 of the same plant, or by varying the treatment of the plant, as by in- 

 creasing or decreasing the temperature, or the amount of water sup- 

 plied to it, the pupil will be able to find out many interesting things 

 about the growth of plants, with a little outlay of time, and none at 

 all of money for apparatus. — C. E. Bessey, Ames, Iowa. 



Trichostema Parishf, Vasey. — Shrubby and much branched 

 below, 2-3 feet high, canescently puberulent; leaves sessile, lance- 

 oblong, i-i^ inches long, tapering to a narrow base, obtuse, spar- 

 ingly tomentose benea'h, with fascicles of linear leaves with revohite 

 margins in the axils ; floral leaves i inch, gradually reduced to bracts. 

 Thyrsus 6-12 inches long, lower cymules i-ij^ inches apart, closer 

 above, each consisting of 5 to 8 flowers, the peduncles 2 to 4 lines 

 long, pedicels about 2 lines, the purplish wool of calyx scanty compar- 

 ed with T. lanatum. Corolla 5-6 lines long, the lower lobe rather 

 longer than the upper, filament 9-12 lines long. 



Differs from T Uviatimi in the shorter and broader leaves, longer 

 and more slender thyrsus, with the cymules more open and much less 

 woolly, the flowers smaller and filaments shorter. 



Named for Mr. S. B. Parish, of San Bernardino. Cal., one of the 

 discoverers. Found in San Diego Co., Cal., by Mr. S. B. Parish 

 and G. R. Fasn: — Geo. Vasey. 



Botany of California, Vol. II, by Sereno Watson.— The 

 authors of this great work are to be congratulated upon its successful 

 completion. The dress is admirable, with fine paper, clear ty])e and 

 broad margins, doing credit even to the famous University Press. 

 The appearance of such a work always makes a stir in botanical cir- 

 cles, for it is a partial record of the progress of systematic botany 

 up to the date of going to press. It is with peculiar satisfaction that 

 we welcome this second volume, for it marks a completed work, and 



