80(> JOURNAL OF THE ROYAL HOK'riCUL'rURAL SOCIETY. 



of an oltl niusliroom bed. This produced a satisfactory flowering. He 

 finds it expedient to lift the Iris when tlie foliage dies back and plant 

 it again in October. — H. R. D. 



Irritation of the Skin, Plants Producing-. By F. Kann- 

 gieser {Gartenfiora, voL hx. pt. viii. pp. 176-181). — The skin may be 

 irritated by contact witli the following plants: Aconitum Na'pellus, 

 Alliuia sativum, Anacardium occidentale, Anemone Pulsatilla, Arum, 

 Bignonia, Caltha palustris, Capers, Citrus vulgaris, Clematis Vitalba, 

 Cyclamen europaeum, Cypripedium parviflorum, C. pubescens, and 

 C. spectahile, Daphne (especially Mezereum), Drosera rotundifolia, 

 Eucalyptus Globulus, Euphorbiaceae, Ficus Carica, Hedera Helix, 

 Heracleum giganteum, Humulus Lupulus, Hyacinthus orientalis. Iris, 

 Juniperus Sabina, Laciuca virosa, some forms of Lepidium and Mentha, 

 Pasti^iaca saliva, Primula obconica, P. sinensis, P. cortusoides, P. Sie- 

 boldii, P. mollis, and P. Arendsii, Ranunculus acris, R. sceleraius, 

 R. bulbosus, and R. Ficaria; Rhus Toxicodendron, R. venenata, and 

 R. vernicifera are very poisoiions. Ruta graveolens, R. divaricata, and 

 R. montana, some Sedums, Sinapis alba, and Solanum Lycopersicum 

 may also cause irritation. — S. E. W. 



Java, Foreig-n Plants Naturalized in. By 0. A. Backer 



(Ann. Jard. Bot. Buit. 3rd supp. 1st part, 1910, pp. 393-420).-— 

 One hundred and fifty -three foreign plants which have become 

 naturalized in Java are mentioned in this paper. The source of each 

 plant, the probable method of its introduction and its distribution in 

 Java are described. — R. B. 



Jessamine, Yellow, The Constituents of. By Charles Watson 



Moore {Jour, Chem. Soc. vol. xcvh. Nov. 1910, pp. 2223-2233).— 

 This is a report of research made upon the dried rhizome and roots 

 of this well-known plant. 



The authors confirmed the presence of the already previously 

 recognized alkaloids gelsamine and gelsaminine (the former crystalline 

 and the latter amorphous, according to the nomenclature of English 

 literature; German investigators reverse these names), and some mis- 

 conceptions as to the crystalline alkaloid have been corrected. 



A third alkaloid was isolated, and found to be amorphous and very 

 poisonous. One-tenth of a grain of the hydrochloride of the crystalline 

 alkaloid injected into the circulation of a rabbit produced no obvious 

 effect. One-hundredth of this quantity of the amorphous alkaloids 

 similarly injected caused death in about twenty-five minutes. 



Scopoletin, another compound found, is somewhat interesting, since 

 it also exists in Prunus serotina and in jalap. — W. A. V. 



Kalmia cuneata {Bot. Mag. tab. 8319). — Nat. ord. Ericaceae; 

 tribe Rhodoreae. Carolina. Shrub, 3-1 feet high; leaves 2 inches 

 long; flowers clustered in fascicles of 2-6 below the leaves; corolla 

 wJute.— a. II. 



