1820.] Physical Science during the Year 1819. 121 



nicaeforme, being the veronica crista galli of Steven in Trans. 

 Lin. Soc. xi. 408. Berl. Mag. Nat. Fr. for 1818. 



Verbenucece. — Observations on the genus Avicennia have been 

 given by A. de St. Hilaire in the Mem. Mus. iv. 



PrimidacecB. — A new species of lysimachia was described under 

 the name of L. tenuifolia, in the Trans, of the Philadelphia Society 

 of Nat. Science; in which some doubts were expressed which Eli. 

 Ives has resolved, and finds that it is really a dicotyledon plant. 



yl?)iaranthace(e.—'3aroT\ F. A. Marshal, of Beerbcrstein, has 

 given the following character of the new genus Habiitzia. Calyx 

 5-lcaved, rotate ; corolla none; capsule cut round, one-seeded. 

 The type is H. tamnoides; leaves petioled, acute; stem climbing. 



Polygonece. — R. Brown, in the appendix to Captain Ross's 

 narrative of his expedition, has restored Hill's genus, Oxyria, the 

 type of which is rumex digynus of Linuteus. 



Santalacece. — A. de Saint Hilaire has published, in the Me- 

 moirs of the Museum, several observations on this family. 



Eupkorhiacece. — Micranthemum ericoides has been described 

 and figured by Desfontaines, who has constituted that new genus. 

 Mem. Mus. 



Coniferce. — The tree found in the garden of a convent at 

 Cyprus, called by the inhabitants ' The wood of oar Lord,' and 

 to which miraculous properties are attributed, has been considered 

 as liquidambar imberbe ; it is now found by Sir J. E. Smith 

 (Linn. Trans, xii. 1,) to be the liquidambar styraciflua, a native 

 of America, but in what manner this tree was introduced into 

 Cyprus does not appear. 



Orchidece. — Mr. J. E, Bicheno {Linn. Trans, xii. 28) has 

 unravelled the confusion that was occasioned by Linnagus re- 

 ducing several orchides mentioned by the old botanists to a 

 single species, 0. Mditaris, and has shewn that three species 

 have been confounded together, 1 . O. strateumatica of John- 

 son, 215,12, the segments of whose lip are unequal, which Mr. 

 Bicheno calls O. fusca; 2. O. strateumatica minor of Johnson, 

 216,13, with equal and broad incurved segments; to which he 

 restrains the name of O. militaris, and .0. Cynosorchis major 

 altera of Johnson, 205, with equal and narrow segments, and the 

 lip also not scabious, to which he gives the name of O. te- 

 phrosanthos. 



Amaryllidecp. — This family has been investigated by the Hon. 

 Mr. Herbert, in the Botanical Magazine, No. 389. 



Narcissi. — Mr. Haworth, in the appendix to his History of 

 Succulent Plants, has published a revision of the plants contained 

 in the Linnaian genus. Narcissus, now divided into eight genera; 

 in which he has given characters to the genera whicli had been 

 distinguished and named by R. A. Salisbury, and added one of 

 his own. 



Colckicacece. — An excellent monograph of the genus crocus 

 has been published by G. L. Goldbach, in the Mem. Mosq. in 



