406 Extracts from the Minutc-Book of the Linncan Socittif. 



composed of petrified animal remains, which agree in 

 structure much better with the Alcyoniums than with 

 any thing else 1 can recollect. The rock exposes some 

 hundreds of yards of strata and surface; and, being 

 chiefly composed of heaps on heaps of these substances, 

 is truly curious. It is cemented together by brown and 

 reddish oxide of iron, which often covers the animal 

 remains in a peculiar manner with a fine crust of spiculae, 

 giving a velvety lustre to them when the light catches on 

 their shining sides. Besides these Zoophytes there are 

 remarkable Belemnitcs, mostly worn ; and a stratum 

 about an inch thick, that presents little else than spines 

 of Ech-ni. There are also some Nautili, and small peb- 

 bles of every description, to be found in this rock." 



Mar. 6, Read the following Observations on some Plants of the 

 1811. Flora Japonica, by A. B. Lambert, Esq. V.P.L.S. 



Mr. Lambert having lately received a collection of spe- 

 cimens of plants from Japan, and another from Egypt, he 

 has been enabled to determine two species of plants belong- 

 ing to the genus Mimosa of Linn, which have hitherto re- 

 mained doubtful among botanists. One is the Mimosa Leb- 

 fcecA;of Linn, found by Hasselquist, who describes it in the 

 Act. Ups. 1750. p. 9- It- 473. " foliis pinnalis" instead of 

 foliis bipinnatis; which has caused the mistakes of subse- 

 quent writers on that genus. Jacquin was the first who 

 made this plant a new species under the name of Mimosa 

 speciosa. This name has been taken up in the first edition 

 of the Horfus Kewensis, and Willdenow in his Species 

 Plant, has called it Acacia speciosa ; but from Mr. Lam- 

 bert's specimens it is evident that Acacia speciosa and 

 Acacia Lcbbcck "VVilld. arc the same plant. The other is 



the 



