RECORD: Darwin, C. R. 1863.08.01-24. Lagerstrœmia indica. CUL-DAR109.B116-B117. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 11.2022. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volumes CUL-DAR108-111 contain material for Darwin's book Forms of flowers (1877).


(1

Lagerstrœmia indica

Aug 5 63.

Pistil on lower side, long, with tip bowed upwards — in middle mass of anther with bright yellow anther & pollen.— from upper side one (!) very long stamen, with thick flesh-coloured filament dark anther & yell dark green pollen — Pollen in both same size about 10/7000 when moderately distended  & 11-13 /7000 fully distended. The tip of one single anther is bowed towards upwardly bowed tip of pistil on opposite side of flower — It stands between coloured petal. Are there homologous of petals in Lythrum? In a second fl single anther was produced on opposite side viz on side of pistil

In another flower 5 long green pollen stamens — 19 yellow — It is certainly mid-styled form.—

The petals in one part, with a furrow at base containing pollen —

(1v

Aug 9th A flower with 4 long green stamens a second flower with 2 green & one long yellow with flesh-coloured filament, so that intermediate in structure.—

13th Five seems most frequent nor of stamens.

I saw one with yellow pollen on several anthers — evidently very variable—

I saw short-styled L. salicaria with pale coloured almost white pollen.—

29 yellow stamens in another flower.

{I have never seen more than 5 long-green stamens

Augt 17th In one long stamen half or one cell contained green pollen & the other half yellow — so variable!!

(N B It is the long stamen which have green pollen in Lythrum)

(2

Lagerstrœmia

Aug 1st green pollen white thread.—

— 7th yellow pollen Black thread

— 9th yel White 1 Black

— 13 2 white 1 Black

15 2 white 1 Black 6

17 2 Black Thread 8

18 1 white Thread

24 — 1 white Thread

Mem abortion of short stamens is un-doing Lythrum)

see about alteration of petals & shape of calyx & long stamen


Return to homepage

Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)

File last updated 2 February, 2023