. Botanisk tidsskrift. Plants; Plants -- Denmark. — 144 — the real conducting surface in this species seems to me a little erron- eous. He says: "The conducting surface, represented by a narrow glabrous band internally at the top of the tube, is functionless, and small digestive glands thickly cover the whole inner cavity", (pag. 421). No doubt small digestive glands cover almost all the inner pitcher-wall, beginning close at the spot where the collar rises, and the conducting surface Uke- wise is functionless, but, stretching however over the lower surface of the inner part of the c
. Botanisk tidsskrift. Plants; Plants -- Denmark. — 144 — the real conducting surface in this species seems to me a little erron- eous. He says: "The conducting surface, represented by a narrow glabrous band internally at the top of the tube, is functionless, and small digestive glands thickly cover the whole inner cavity", (pag. 421). No doubt small digestive glands cover almost all the inner pitcher-wall, beginning close at the spot where the collar rises, and the conducting surface Uke- wise is functionless, but, stretching however over the lower surface of the inner part of the collar, it isnotlimited to a narrow band at the top of the tube (6—c, Fig. 6). There seems to exist a sort of correlation between the extension in depth of the conducting Fiff. 16. Siomata „ i .i • • i f\, . ., , ,1 ct surface and the size of the mner part of the inner side of the hd. Stage ^ of development: Fig. 3. of the rim, a correlation of which N. gracilis and N. am2Jullaria are here taken as types. In the former the growth at h (Fig. 7) is greatly limited, and the conducting surface stretches along the inner pitcher- wall, whereas in the latter an important growth at h forces the conducting surface out on the lower side of the incurved rim. Unquestionably the constitution and development of the collar in the various species must be taken into account, when the genealo- gical connection of the Nepenthes-s^ec\es shall be traced, as Mac- far lane has done; but I do not think that he is quite right in regarding the collar of N. ampuUaria as a more primitive form than that of N. gracilis. Copenhagen, 17. April 1909. Resume. I. Kravens Udvikling eg Morphologi. A. To fejlagtige Meninger om Kravens Udvikling er tidligere anfert: a. Hele den rillede Overflade skulde svare til Kandens oprindelige Rand, som under Vaeksten blev fladet ud. (Macfarlane (11) 1889). b. Den oprindelige Rand skulde findes, forsynet med Randkirtler, i Kravens indadbojede
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