400 Mr. J. Miers on the Styraceae, 



the peduncle are tomentose, while, I believe, in the American 

 specimens the calyx is wholly tomentose, as described in the 

 ' Prodromus ;' the whole flower is indeed only half the size of 

 those in specimens from the United States, so that we may infer 

 that it constitutes perhaps a distinct variety. The petals here 

 are 6 lines long and 4 lines broad, narrowing gradually to the 

 base into a claw, and are quite glabrous ; in native specimens 

 they are sparsely clothed on both sides with stellated hairs, and 

 in the bud tomentose externally. The stamens are 4 lines 

 long, the anthers 1 line, the cells linear, parallel, and separated 

 by a distinct interval ] each filament is perfectly glabrous, 

 tubularly hollow, sub-4-gonous, and marked by a nervure 

 along its back ; the termination of this tube is fleshy, forming 

 a roundish linear connective, upon which the anther- cells are 

 dorsally adnate for their entire length. In the American spe- 

 cimens the stamens are 6 lines long, the anther-cells being 

 2 lines in length ; but then the filaments are much broader, con- 

 sisting of a thin simple membrane with a central nervure, and 

 they are sparsely stellately pilose ; those in the bud appear to 

 adhere together by their margins for their whole length, but on 

 the opening of the petals they separate from one another almost 

 to the base, and even there they are detachable by a slight force. 

 The style is 7 lines long, slender, continuous with the free coni- 

 cal summit of the ovary, and, like it, perfectly glabrous; in 

 the American specimens the style is pubescent. The internal 

 structure of the ovary has been fully described ; the placenta in 

 this instance rises to J the length of the internal space, four 

 ovules in two series being found in each of the four basal divi- 

 sions, two erect and two pendent. The fruit is from 1-1^ inch 

 long, and |^-| inch broad across the wings, which are equal. 



2. Halesia diptera, Linn. Sp. 636; Cav. Diss, vi.338. tab. 187; 

 Mich. Fl. Bor. Amer. ii. 40 ; Pursh, N. Am. Fl. ii. 450 ; Lod. 

 Bot.Cab. 1. 1172 ; A. DC. Prodr.viii. 270 ; — ramulis subangu- 

 latis, cortice in fibrillis longis rimoso ; foliis oblongo-ovatis, 

 acumine angustato, imo acutis, margine denticulatis, dentibus 

 glandulosis, supra Isete viridibus, subglabris, subtus palli- 

 dioribus, obsolete puberulis, margine ciliatis (junioribus pu- 

 bescentibus), petiolo canaliculato vix puberulo ; floribus 3-4 

 majoribus, et ut in pra^cedente in axillis annotinis aphyllis 

 prajcocibus, pedicellis flore brevioribus, nutantibus, et cum 

 calyce tomentosis ; calycis dentibus acutis, petalis 4-5, sparse 

 moUiter puberulis, staminibus 8,filamentis latis,membranaceis, 

 glabris, imo vix agglutinatis ; ovario semisupero, tomentoso, 

 stylo hinc usque ad medium puberulo, superne glabro, et sa3- 

 pissime in filis 3 tenuibus fisso ; fructu semper alis 2 latis, 



