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Crinum Capense.

[penciled words illeg]

Plant with extremely long, trailing much attenuated leaves, with their upper parts hanging down vertically parallel with lower & broader & upright part, with broad arch where bowing occurs, whether geotropism or mere weight cause bowing I know not [sketch]

One young leaf with apex a very little declined from vertical observed by means of triangles on curved straw filament & one with long depending arms observed with mark behind

Length of longest leaf on plant 53 inches: Breadth at base only 1.4 inches

The leaves Bow over at first bow over at about at a foot fr above the ground but afterwards bend lower down. (The Bowed leaf which was traced stood up vertically to cr crown of bow 20 inches & the tapering dependent part which part depended vertically from cr crown of arch was was only 5 1/2 inches.

The bowed leaf was observed by plant placed under Bell-glass with black dot on opposite side & depending tip was brought into lines with the dot & tracing then made moderately magnified. (see Tracing I.) on the first whole day (May 22d) it moved to one left side in zig-zag line, so that very long almost horizontal line was traced on glass. This probably due to plant recovering from disturbance & only the part fastened late in evening is shown in Tracing. During night continued same course to the left, but on early by 7° a.m on morning of 23d reversed course & went to right & so continued till 10° 30' when it rose the line rose & travelled back in former direction ie to left till 9° P.m when it travelled

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Crinum Capense

moved to right & so continued all night. At 7° 6. 45' a.m on 24th moved down & to right till 9° 30 when it rose & moved to left; it then zig-zagged much rising. At night moved to right & next morning between 6° 40' & 10' 15 moved back to left.

There can be no doubt circumnutates. It will be seen that the dotted lines

A younger leaf which stood vertically up was observed under same Bell-glass— from 3° P.m on 22d of May to 10° 15' a.m. on 25th.

A fine glass filament was fixed obliquely on tip with 2 little paper triangle & tra movement traced on glass— Tracing II. considerably magnified

The line rose obliquely & this is due to growth of leaf.; but one if there had been no rising there wd have been 2 ellipses formed, & it appears that apex circumnutate about once in 24°.