of the EscHARA. 6p 



C H A p. VI. 



Of the Efchara. 



1 "THOUGH thefe Bodies properly belong to the Milk- 

 ' pora, yet, as I have generally followed the celebrated 

 Ray, I (hall keep to his Appellations ; adding fuch a De- 

 fcription to each, as may enable the Naturalifts eafily to rank 

 them in their proper Places. 



My Author's Charadleriftic of this Clafs is, that their Sur- 

 faces fhould refemble that of a Web of Cloth. And the Mi- 

 crofcope informs us, that they conlifl: of Arrangements of very 

 fmall Cells, whofe Surfaces appear much in that Form. 



The very near Refemblance, that the two firfl: of the fol- 

 lowing "Efchara bear to Leaves o{ Plants, has given Occafion 

 to the botanic Writers to clafs them among the Fucuss, 



N°. I. Efchara foliacea, millepora, tenera a7iguJlior, foliolis pkte 

 qtiaji abfcij/isj &'celiulis oblongis alterfiis iitrhiqiie inJiruEla. ^\^^a^A. 

 Fucus marinus, fcrupofus, albidtis, angujlior.^ comprejfus 

 extremitatibus quaji abjcijjis. H. Ox. III. pag. 646. 

 R. S. p. 43. 



Narrow-leaved Hornwrack. 



The eafy Transition in the Order of Nature, from the laft 

 Clafs which was the Keratophyta, to the firft of this, is re- 

 markable ; for, in this Species, the Rows of Cells continue to 

 proceed from fmall Tubes, that unite together, and form a kind 

 of Stalk : This divides, as it rifes, into narrow Leaves, made 

 up of regular Rows of oblong Square fliaped Cells, placed 

 alternately by each other, and oppofite to an equal Number 

 on the other Side of the Leaf, like the Honeycomb : From 



thefe 



