10 ESSAYS. 



here described for which this herbarium is alone authentic ; 

 for Linnaeus, as we have already remarked, possessed very 

 few of Clayton's plants. The collection is nearly complete, 

 but the specimens were not well prepared, and are not there- 

 fore always in perfect preservation. A collection of Cates- 

 by's plants exists also in the British Museum, but probably 

 the larger portion remains at Oxford. There is besides, 

 among the separate collections, a small but very interesting- 

 parcel selected by the elder Bartram, from his collection 

 made in Georgia and Florida almost a century ago, and pre- 

 sented to Queen Charlotte, with a letter of touching simplic- 

 ity. At the time this fasciculus was prepared, nearly all the 

 plants it comprised were undescribed, and many were of en- 

 tirely new genera ; several, indeed, have only been published 

 very recently, and a few are not yet recorded as natives of 

 North America. Among the latter we may mention Petive- 

 ria alliacea and Ximinea Americana, which last has again 

 recently been collected in the same region. This small parcel 

 contains the Elliottia, Muhl., Polypteris, Nutt., Baldwinia, 

 Nutt., Macranthera, Torr., Glottidium, Mayaca, Chaptalia, 

 Befaria, Eriogonum tomentosum, Polygonum polygamum, 

 Vent., Gardoquia Hookeri, Benth., Satureia (Pycnothymus^) 

 rigida, Cliftonia, Hypericum aureum, Galactia Elliottii, 

 Krameria lanceolata, Torr., Waldsteinid {Comaropsis) lo- 

 bata, Torr. & Gr., the Dolichos f multiflorus, Torr. & Gr., 

 the Chapmannia, Torr. & Gr., Psoralea Lupinellus, and others 

 of almost equal interest or rarity, which it is much to be re- 

 gretted were not long ago made known from Bartram's dis- 

 coveries. 



The herbarium of Sir Joseph Banks, now in the British 

 Museum, is probably the oldest one prepared in the manner 

 commonly adopted in England, of which, therefore, it may 

 serve as a specimen. The plants are glued fast to half-sheets 

 of very thick and firm white paper of excellent quality (simi- 

 lar to that employed for merchants' ledgers, etc.), all care- 

 legit." Ludg. Bat. 8vo, 1743. Ed. 2, 4to, 1762. The first edition is cited 

 in the " Species Plantarum " of Linnaeus ; the second, again, quotes the 

 specific phrases of Linnaeus. 



