1820.] Physical Science during the Year 1819. 129 



luent, or rather catalogue, of the German cryptogamous plants^ 

 according to tlie soils or plants on which they grow. 



Cape of Good Hope. — Thunberg has lately investigated several 

 genera found there, and figured some of them, enumerating 

 three new species of rhamnus, seven of solanum, 33 of lobelia, 

 one each of the genera schcenus, alopecurus, dactylis, and 

 ehrhartia. 



Russia. — The Memoirs of the Imperial Academy of Moscow, 

 lately imported, contains many observations and descriptions 

 of several hitherto undiscovered plants found in the Russian 

 empire. The dissertation of Mr. Stevens contains a monograph 

 of the genus Fedia: of this genus he enumerates 13 species, di- 

 vided into five sections; also, a new species of iris, I. paradoxa ; 

 a new genus of thefamil}' of scirpideee, viz. bulbostylis, to contain 

 scirpus ovatiis and s. palustris : observations on the several spe- 

 cies of corispermum, of which he describes five : on veronica ; on 

 lycopus amethystinus, which he denies to be a separate genus; 

 and on the valerianese. 



India. — Mr. Colebrook has given a description of several 

 select Indian plants, of which the following are the principal 

 points: Sabia, a new genus, whose characters are, petals 5, 

 lanceolate, persistent, inferior; stamens 5, straight; drupe su- 

 perior, kidney-shape, 1 -seeded ; style one ; embryo direct, spiral; 

 perisperm none : of one species, s. lanceolata, he gives a figure. — 

 Strychnos axillaris, a new species with the leaves ovate, pointed ; 

 tendrils axillary, thickened ; berry oval, 1-seeded. — Dischidia 

 Bengalensis; leaves oblong, ancipital. — Tylophora exilis; 

 panicles terminating in umbellets; corolline segments oval, 

 obtuse ; leaves subcoi'date, acute, smooth, becoming firm and 

 fleshy. — Macrolobium bijugum; flowers triandrous, 6 sterile 

 filaments, leaves 2-paired. — Pygaeum acuminatum of Gsertner; 

 flowers icosandrous, monogynous ; calyx inferior 6-toothed ; 

 petals 6; drupe dry, transversely oblong ; embryo inverse; peri- 

 sperm none. Linn. Tr. xii. 



Canary Islands. — Von Buch has given an account of the plants 

 of those islands in the Berlin Magazine of Natural History. 



Tristan de Cunha. — Captain Dugald Carmicliael, having exa- 

 mined this insulated spot, has given a list of 55 species of plants 

 he found upon it, of which 8 are new. 



America. — M. llafinesque has published in the Journ. de Phy- 

 sique, Aout, 1819, an account of fifty new genera of plants, esta- 

 blished or discovered by him. They are all American plants. 

 And he has also published in the same journal his remarks on 

 the works of Pursh, and other American botanists. 



Java. — A most magnificent and singular flower has been dis- 

 covered in Java, rising immediately out of the ground, without 

 any leaves at the time of flowering. The flower is between two 

 and three feet in circumference, flat like a soup plate, the lower 

 part or base is covered with excrescences and filaments ; the limb 



Vol. XVI. N^ II. 1 



