556 Floristik etc. — Angewandte Botanik. 



Blütenmerkmale (z. B. die Deckung des Perianths, die Ausbildung 

 des Griffels und die Gestalt des Pollens) benutzt werden. Insgesamt 

 umfasst die Familie einschliesslich der anomalen folgende Gattungen 

 {Zahl der Species in Klammern beigefügt): 



Anisomeria (4), Ercilla (2), Phytolacca (26), Barbenia (1), Didy- 

 motheca (5), Tersonia (2), Gyrostemon (5), Codonocarpus (3), Hüleria 

 (3), Gallesia(l), Seguieria (23) , Rivina (3) , Trichostigma (3) , Ledenbergia 

 (1), Schindleria (5), Petiveria (2), Monococcus (1), Stegnosperma (1). 

 Agdestis (1), Microtea (9), Achatocarpus (12), Phaidothamnus (1). 



Als neu beschrieben sind folgende Species aufzuführen: 



Anisomeria densißora H. Walter n. sp., Phytholacca cyclopetala 

 H. Walter n. sp., P/?. nutans H. Walter n. sp., P/z. sangninea H. 

 Walter n. sp., P/z. Weberbaueri H. Walter n. sp., P/z. heterotepala 

 H. Walter n. sp., Pä. Mesiana H. Walter n. sp., P/z. micrantha H. 

 Walter n. sp., Didymotheca cupressiformis H.Walter n. sp. , D.stricta 

 H. Walter n. sp., P. Dielsii H. Walter n. sp., Gyrostemon racemige- 

 rus H. Walter n. sp., £. spinoso-stipulatus H. Walter n. sp., Seguieria 

 brevithyrsa H. Walter n. sp., 5. inermis H. Walter n. sp., 5. elliptica 

 H. Walter n. sp., S. emarginata H. Walter n. sp., S. lanrifolia H. 

 Walter n. sp., 5. Wangerinii H. Walter n. sp., S. pachycarpa H. 

 Walter n. sp., 5. Votschii H. Walter n. sp., S. rigida H. Walter 

 n. sp., 5. mammifera H. Walter n. sp., Schindleria mollis H.Walter 

 n. sp., Microtea longebracteata H. Walter n. sp. , Achatocarpus mollis 

 H. Walter n. sp. , A. gracilis H. Walter n. sp. , A. brevipedicellatus 

 H. Walter n. sp. , A. brasiliensis H. Walter n. sp., A. mexicanus H. 

 Walter n. sp. 



Besonders hervorgehoben sei noch das gänzliche Fehlen von 

 Species dubiae. Ein alphabetisches Verzeichnis der Sammler-Nummern 

 ist beigefügt. W. Wangerin (Königsberg i. Pr.) 



Holm, T., Medicinal plants of North America. 31. Dios- 

 pyros virginiana L. (Merck's Report XVIII. p. 229—231. fig. 1—15. 

 Sept. 1909.) 



The unripe fruit, which is extremely astringent, was formerly 

 included in the secondary list of American medicinal plants. Tannic 

 acid, pectin, sugar, malic acid, coloring matter and lignin were 

 found in the fruit by B. R. Smith, and the tannic acid is by Char- 

 ropin considered identical with that of nutt-galls. The bark of the 

 trunk and twigs is astringent, styptic, tonic, corroborant and anti- 

 septic, and was formerly applied for sore throat, fevers, and dysen- 

 tery. By Rafinesque the cortex was deemed equal to Cinchona, 

 and recommended as a powerful antiseptic. The unripe fruit has 

 nearly the same properties as the bark, but is very styptic; when 

 fully mature it is highly palatable, sweet and vinous. 



The seedling has a long primary root, a tall, erect hypocotyl, 

 and the cotyledons are foliaceous, deep green, varying in outline 

 from elliptic-oblong to ovate. Among the anatomical characteristics 

 may be mentioned that the root has a broad pith, and that the 

 secondary cortex contains numerous large crystals of calcium Oxa- 

 late, and sclerotic cells besides stereome. 



We find in the hypocotyl four collateral mestome-strands, con- 

 nected with each other by interfascicular cambium, which, later on, 

 gives rise to porous tracheids, and much thickwalled parenehyma, 

 but no libriform. The branches of the tree are densely hairy from 

 short, thickwalled, unicellular, pointed hairs; inside the epidermis is 



