52 Systematik und Pflanzengeographie. 



Involucre of as many herbaceous scales as there are ray flowers , each scale 

 completely and closely enfolding its obovate-oblong, obcompressed, smooth akene. 

 Receptacle small, flat, its chaff united into a tubulär, 10 — 12-toothed cup enclosing 

 the disk-pZowers. Corollas white; those of the ray purple-tinted, deeply tieft into 

 3 linear divisions, open duringthe wholeday; those of thedisk 5-lobed. Pappus 

 of the ray a hyaline, saucer-shaped , entire croivn ; of the disk, a pair of 

 extremely slender, deciduous scales, which eaual the corollas. — A Californian 

 herb, between Hemizonia and Lagophylla, but of very distinct generic type, 

 with the aspect of the former, and the obcompressed , completely enfolded ray- 

 akenes of the latter, but differing from it by its perennial root, its united chaff, 

 and especially by the remarkable pappus of bolh ray- and disk-akenes. — 

 Hierher gehört Holozonia filipes Greene, identisch mit Hemizonia filipes 

 Hook, et Arn. und Lagophylla filipes A. Gray ; die Art war nur unvollkommen 

 bekannt, bis Verf. neues Material von den Napa Soda Springs zu beschaffen 

 vermochte. Köhne (Berlin). 



Burnat, E. et Gremli, A., Supplement a la Monographie 

 des Roses des Alpes maritimes. 8°. 62 pp. Lausanne 



1882. 



In diesem Nachtrage zu dem früheren Werke derselben Verff.: 

 Les Roses des Alpes maritimes. 1879. werden folgende neue Arten 

 beschrieben: 



Rosa Gremlii Christ, Beatricis Burn. et Gr., Allionii, Gallinariae, polyadena 

 und Andorae. Der Name meridionalis der früheren Arbeit ist, als schon 

 vergeben, in Lantoscana umgeändert, Calabrica ist = glutinosa S. S., 

 Calabrica ß ■= Thureti. R. Seraphini Viv. wurde von Sicula Tratt. als 

 Art getrennt; R. sepium Thuill. macht dem älteren R. agrestis Savi Platz. 

 R. Burnati wurde als Var. unter dumetorum, R. glauca mutata (= R. Marsica 

 God.) zu montana gebracht. Chr ist's Marsica ist eine Form der glauca. 

 R. paradoxa wurde als Var. unter arvensis gestellt. 



Den Schluss der Arbeit bildet ein genau ausgearbeiteter 

 Schlüssel zum Bestimmen aller bis jetzt auf den Seealpen ge- 

 fundenen Rosen. Gremli (Vevey). 

 Baker, J. G., Contributions to the Flora of Central 

 Madagascar. (Jouru. of Bot. New Ser. Vol. XL 1882. No. 

 229. p. 17—20; No. 230. p. 45-51; No. 231. p. 67—70; No. 

 232. p. 109—114; No. 233. p. 137-140; No. 234. p. 169—173; 

 No. 235. p. 218—222; No. 236. p. 243-245; No. 237. p. 266—271.) 

 Neu beschrieben werden: 

 Acome dumosa Baker p. 18, Imerinaleg. Parker, Fianarantsoa, Betsüeo- 

 Land leg. Baron n. 11; Psorospermum Fanerana Bak. p. 19, Ost-Betsileo leg. 

 Baron n. 5; Ps. androsaemifolium Bak. p. 19, West-Betsileo leg. Baron n. 

 120; Symphonia (Chrysopia) clusioides Bak. p. 19, Betsileo-Land, leg. Baron 

 n. 16. 



Ausserdem werden angegeben: 

 Nasturtium barbareaefolium Bak. , Acome micrantha Bak. , Viola Abys- 

 sinica Steud., Geranium simense Höchst., Hypericum Japonicum Thunb. 



Xerochlamys nov. gen. Chlaenacearum, p. 45. Involucel a large persistent 

 coriaceous pilose cup with 5 deltoid teeth. Sepals 3, free, obovate, about as 

 long os the involucel. Petals 5, obovate , spathulate , much imbricated in 

 bud, nearly twice as long as the sepals. Stamens indefinite (about 20), mona- 

 delphous at the base ; filaments rather flattened ; anthers minute, subglobose, 

 dorsifixed. Ovary globose , 3-celled , pilose , with several ovules in a cell ; 

 style simple , persistent , elongated , with a large mushroom-shaped stigma. 

 Fruit a capsule about the size of a pea, surrounded by the withered involucel 

 and sepals. Seeds about 3 in a cell , hairy , angular. Allied to Leptolaena 

 Thouars , from which it differs by its dry involucel , indefinite stamens , and 

 ovary with more than 2 ovules in a cell. — X. pilosa n. sp., p. 45, West of 

 the Betsileo-country, Baron n. 134, — Pavonia Bojeri sp. n., p. 45 (UrenaV 



