ro Air. Woodward'^ Obfervations upon 



confute the diftribution in SyJl. Veget. and in the woiks of other 

 authors. For this reaion, it is at preient propofed to reject from 

 the genus Uha fuch ipecies only as ate either known to be Fuci 9 or 

 which, from their analogy with thofe, there are the ftrongeft 

 reafons to conclude muft belong to that genus; and alio fuch as 

 are terreftrial and gelatinous, or which grow in freih water, and 

 are gelatinous, and approaching to a globular form. This will 

 confine the genus Uha to fuch plants as are really marine, with 

 the fmgle exception of inte/iina'is t which is found in both freih and 

 fait water, and has fo great an affinity with ladluca^ linza, and com-* 

 frejfa 9 that it would be very improper to feparate them. For the 

 better diftinguithing, and the more eafy inveftigation, of the nume- 

 rous fpecies, they are here arranged in different fubdivifions in the 

 following concife 



Synopsis Specierum* 



Subd. T. Membranaceae, frudtif. adhuc incognita. 



A. fronde plana integra. 



Ulva umbilicalis. Linn. — Gm. SyJl. Nat. — Hud. — Light. — With. 



purpurea. Gm. S\ft. Nat. — Roth. FL Germ. — an var. pranced. ? 



plicata. FL Dan. t. 829. 



latiffima. Linn. — Gm. SyJl. Nat. — Light. — With. 



fufca." Hud. — a praecedente ciiffert. 



lanceolata. Linn.— Gm. SyJl. Nat. — Hud. — With. 



la&uca. Linn. — Gm. SyJl. Nat. — Hud. — Light. — With. 



B. fronde plana pertufa. 

 Agarum. Gm. Hijl. Fucor. — Herb. Bankjianum. 

 Clathrus. Gm. Hijl. Fucor. — Herb. Soc. Linn. 

 reticulata. Gm. SyJl. Nat. — Fotjk. FL Mgypt. Arab. 



C. fronde 



