a 
ORCHIS BRACTEALIS. 
Bracteal Orchis. 
ORDO NATURALIs. 
Orchidex. Juss. Gen. p. 64, 
Sect.rv. Monandreanthera immobili, 2-loculari, 4-valvi. Pollen filo elasti iol 
stipitatum. Ad hanc sectionem quoque pertinent Disa,Satyrium Sw, Gepdina Dine Peerygodm 
Petala 6: 5 _ in galeam conniventia: Labellum figura maxime varium, nunc calcarigerum : 
marcescentia, Anthera apice styli confluens, cuculliformis. Pollen filis in tuberculum commune 
aut 2distincta desinentibus. Stigma in facie styli scutiforme. Herbe, rarius pubescentes. Radir vari varia, 
tubere ovato palmato aut cruriformi, novo ad latus sub florescentiam jam producto, unde tunc quasi 
duo ; supra hoc e basi turionis fibras exserens. Folia radicalia, 1 vel plura interiorum demum pedunculo 
elcvata, Flores spicis terminalibus, raris densisve. Bractea 1-ria, interdum colorate. 
** Radix palmata. 
O. bracteis flore multo longioribus: petalis 5 conniventibus, lateralibus basi valde protuberantibus ; 
labello parum longiore, versus pedunculum refracto, sublineari, emarginato cum rudimento mediz 
dentis, calcare scrotiformi vix retuso. 
0. bracteata. Willd. Sp. Pl. 0. 4. p. 34. 
Sponte nascentem in Pensylvania, legit H. E. MUHLENBERG. 
Floret apud nos Maio, Junio. 
Professor Swartz has shewn great judgment in many of the alterations — he has ae vont 
Orchidee, but I cannot adopt his arrangement implicitly, because, as Dr. Sims has already remark- 
- it often joins plants totally discordant in habit and the structure of their ania for inns, 
as Palustris with Ophrys Ovata, Epidendrum Cucullatum with Ophrys Corallorhiza ; ee 
‘ics as agree in those points, for instance Satyrium Viride, L. from Ophrys , Limodorum Tan- 
kervillie from Limodorum Altum, Jacq. That he is right however in joining Linne’s Satyriums to 
Orchis, I have always thought, and am glad to find that Professor WiLLDENow likewise follows 
HALLER respecting the 
About iis ame ct our ‘plant accordingly there cannot be a question, for it is so nearly gpa to 
Satyrtum Viride, L. as not to be easily distingui uished: the chief differences I have been able to detect 
the two outside lateral petals are more hunched at 
the bottom ; 3dly, the labellum is scarcely ne a in ba lower flowers, and so refracted as to 
nearly obtuse. Protease WILLDENOW lestiibes the nad reticulated, but asst are 
not so in the live plant, neither are the lateral petals, ‘‘ recta,” in any sense w 
Root palmated ‘ih waco fibres issuing from the base of the young g shoot. Leaves from a to 
5, yellow-green with their under surface paler, one or two radical, the rest elevated by the ped: Lag 
contracted a t the base into a close sheath, from thence oval the upper hes so Boca rongedlered 
bractes, very aie obtuse, smooth, channelled, sharply keeled, so pores Pig a ~ars 
pig ta nerves. Flowers without — cernuous. Spike e from 2 to 0 inch ge 
pium m while young yellowish green, sn twisted, oblong, G-angular. Petals 6: 5 arched 
into a helmet; 3 outer ones yellow-green, the lateral ones larger ae ome a 
; 2 inner ones much paler and smaller: Labellum more yellow dhe petals 
with a tinge of brown towards the margin at the base, rather longer, bent back Besscwd 
the peduncle, oblong, emarginated with a rudiment of a middle tooth often of: mm seamen 
lower flowers ; near the base dilated into 2 melliferous cayities, between w 
