Esula major Germanica of Lobel. 535. 
sime serrata, ut vix observentur serrature. | Umbelle cum umbellulis laterali- 
bus ita coacervate, ut primaria difficilius eruatur, luteæ petalis et involucris. - 
Flores primarii masculi pentapetali;. reliqui hermaphroditi tetrapetali: pe- 
talis transverse ovalibus. Fructus verrucosi et pilis albis subtilissimis ad- 
spersi. Rami steriles ex alis foliorum inferiorum, ut ex summis alis pedunculi 
umbelluliferi.". In these two descriptions there is little difference, except that in 
E. palustris nothing is said of the leaves being hairy or serrated. In Hortus 
Cliffortianus, Linnzeus joins to E. palustris, Tithymalus palustris villosus mol- 
lior erectus and Tithymalus nemorosus villosus mollior, Barr. Rar. Whether 
these belong to it or not, it proves that he did not consider the smoothness of 
the leaves essential. Perhaps the greatest difference is in one being placed in 
the division of quinquefid umbels and the other among the multifid ; but this 
will not hold good, for “ Umbellz cum umbellulis lateralibus ita coarcervatz 
ut primaria difficilius eruatur" might with great accuracy be applied to Eu- 
phorbia amygdaloides, our common Wood Spurge, which is placed in the 
multifid division as well as E. palustris, so that E. pilosa must come into the 
same division as that species. 
On the 2nd of August last I visited the station nearest to Bath, and though 
the husbandman had been before me with his hook, I found enough left for 
examination, and I have a living plant received from thence in a former year. 
After the most careful attention I can give to the subject, I am thoroughly 
convinced that the plant now found is the Euphorbia palustris of Linneus 
and most continental botanists, and that it is also the “ Euphorbia foliis alternis, 
ex ovali lanceolatis umbellis diphyllis subtrifloris, capsulis erectis muricatis, 
caule simplici" of Gmelin in his Flora Sibirica, vol. ii. 227. t. 93. “Inter Irtim 
et Jeniseam fluvios ubique frequens est," which Linnsus has adopted as 
E. pilosa. In the Linnzean Herbarium the specimen called E. palustris has gla- 
brous leaves, yet still I think the rudiments of hairs may be traced on some 
of them. In that marked Æ. pilosa, * Jenise,” and therefore evidently sent to 
Linnzeus from the latter of the rivers mentioned by Gmelin, the hairs are very 
visible and by no means * vix manifeste.” In the Banksian Herbarium there 
is a specimen named Euphorbia palustris, “In Austria alpina, Jacq.,” which 
agrees exactly with the Euphorbia pilosa of the Linnzan Herbarium, and with 
our Bath plant in having the leaves manifestly hairy on the margins and 
