1

[in margin:] Everything here relate to Drosera, except 1 on Aldrovanda

Bot: Zeitung 1861 p 146 A discussion by Dr Nitschke on the nature of the petiole of Aldrovanda which has been much disputed

P. 234 Describes fully & figures the papillæ on Drosera.

P. 235 they are found on the marginal pedicels & on the larger tentacles near the margin

(I must not consider then as rudiments of sessile glands)

[Insertion:] N. considers these of nature of Hairs Perhaps they are the primordial elements from which glands were developed.— I think I had better say nothing

P. 241 All the elements of the blade of the leaf— enter the tentacles (this supports my belief that the basal portion is a prolongation of the leaf, developed through correlation).

P. 224 He states that The red fluid in the cells is the result of the metamorphosis of chlorophyll.—

P. 245 He does not appear to have seen the third inner layer of cells described by Warming (nor did I ever see them)

2

P 253-254 Describes fully & figures the papillæ which vary much in structure & graduate into the hairs, & the hairs on the petiole graduate into tentacles, as some of the hairs occasionally bear rudimentary glands; he here discusses the homological nature of the tentacles

I think I had better say nothing whatever on origin of the leaves like papillæ. They do not differ widely from those in Aldrovanda Utricularia.—