Pteridophyten. — Pharmaceutisches. — Personalnachrichten. 665 



K., Aspidium spinulosum Sm. v. geminatiim, ntirabilis K., Aspidiunt 

 düatatwn Sw. v. depauperatum cristatum K., Cystopteris fragüis 

 Bernh. V. depauperatum K. , Lycopodium clavatunt'L.v. fasciculatumK. 



^ Jongmans. 



Holm, T., Medicinal plants of North Amerika. IS. Sanguinaria 

 CatiadenstsU (Merck's Report. XVII. p. 209-212. pl. 1 — 15. Aug. 1908.) 

 The drug called Sanguinaria consists of the dried rhizome col- 

 lected after the death of the foliage; it contains an alkaloid „san- 

 guinarine", furthermore „chelerythrine", ß- and ■/ homochelidonine 

 and protopine. Sanguinaria is an acrid emetic, with stimulant, nar- 

 cotic powers. The mature plant, and the seedling is described; the 

 latter has hypogeic cotyledons, and a short hypocotyl, which soon 

 increases in thickness, thus forming the first Joint of the fleshy- 

 creeping rhizome. Seidom more than one leaf. succeeding the coty- 

 ledons, develops during the first season, and its blade is simply 

 cordate, not lobed as the final leaves. The internal structure of the 

 vegetative organs is described. Characteristic of the roots is the 

 small secondary growth, confined to the stele, the endodermis and 

 pericambium remaining unchanged. The rhizome contains a circular 

 band of mestome-strands with interfascicular cambium, and some 

 few others are located in the cortex outside these. While in the 

 roots and the rhizome the red latex occurs in ordinary parenchym- 

 atic cell, this latex is in the scape deposited in articulated tubes. 

 The general structure of the floral scape is quite simple, and rather 

 weak; there are about six collateral mestome-bundles, arranged in 

 an oval band, but with no interfascicular cambium. A stereomatic 

 pericycle is developed in the shape of arches covering the leptome, 

 but not as a closed sheath. The leaf-blade shows a dorsiventral 

 structure; the stomata are surrounded b}^ mosth^ five ordinary epi 

 dermiscells, and confined to the dorsal face. A palissade tissue of 

 two layers Covers the very open pneumatic tissue. The latex is in 

 the blade contained by short, not tubulär, cells, which are scattered 

 in the thinwalled, colorless parenchyma, enveloping the larger me- 

 stome-strands. Theo Holm. 



Personalnaehriehten. 



M. le Prof. P. A. Dangeard, Directeur du „Botaniste" a ete 

 Charge de Cours de Botanique ä la Faculte des Sciences de Paris. 



Decede: M. M. Petitmengin, Prepar. de bot. ä FEcole sup. de 

 Pharm, de Nancy, le 18 Oct. dernier, ä Tage de 28 ans. 



M. le Prof. Ph. van Tieghem vient d'etre elu Secretaire 

 perpetuel de l'Acad. des Sciences. 



Ernannt: Prof. Kienitz-Gerloff zum Director der Landwirt- 

 schaftsschule in Weilburg a. L. 



COMPTE-RENDU DE L'ASSEMBLEE GENERALE 



DE 



L' ASSOCIATION INTERNATIONALE DES BOTANISTES 



ä Montpellier 6—14 juin 1908. 



Reunion du Comitä directeur et des redacteurs speciaux le 6 juin 1908. 



Le Comite directeur et les redacteurs speciaux se reunissent 

 dans l'une des salles de l'institut de botanique de l'Universite de 

 Montpellier le 6 juin 1908 ä 2 h. -^ precises de l'apres-midi. 



