Siippl. 



ORCHIDES. 929 



The relnlion of llils, in a very nenr degree, with Ornitiioccphnhis , of which it ii.is 

 much the appenrance. is iinqucstionalile. The (lisiinciion mainly resides in tlie pre- 

 senco here of n linear horizontai arm on each side of ihe coliimn at its base . and <if 

 a npshy incurved process at the hase of ihe lip slnMding hotween ihc arms. What is 

 the signilication of these nrms, and of the inlermediate process? When the genns 

 was pubiished in the „notni)icnl Hcgister" I conipared the . arms to the colnmn enrs 

 of Onrlingtonia; upon which supposition the customary slorile stamens of Orchidaceae 

 must be assumed to be occasionally free. It is, however, not improbnble that ihe aji- 

 paralus in question may consist of three abortive stamcns belonging lo two different 

 whorls. Dr. R. Brown long since (Wallich Pl. As. rar. I. 7) pointed out the possibi- 

 liiy Ihat the processcs of the lip found in, Pterostylis, and ccrtain other genera, might 

 reprosent slnminal apparntus, completing ihe customary numl)er of mnle parts found 

 in Endogens. He even remnrkod Ihnt ,,perhaps it may be consideroil ns indicnted in 

 all cases, wbere tbe laboilum is furnished with a process , liowever minute , nrisitig 

 from ils a.xis." I have not seen renson to express publicly an ocquiescence in tlint 

 hypolhesis, not hnving snrceeded in fuiding satisfnctory cvideiice of its trnth ; on ibo 

 contrary, it has appeared to me ihat ihe processes in question might as justly be re- 

 ferred to.ihe siigma: I am, however, bound to admit, ihat ujion ihe whole ihere is an 

 accumulution of facts so mucb in favour of ihe theory of tbe sagacious observer ab- 

 ove menlioned, tbat it becomes more and more probable It is especinlly to be noted, 

 that tbe number of processes found on the lip is usunlly one , two or three; ihe 

 laller being the more common. In some inslances , one may represent the front ab- 

 orlivp stamen only, two may reprcsent tiie two Inlorals only, and ihree may repro- 

 seni Ihpm all. It is also remnrkable , ihnt where ihree processes or Ihree rows of 

 proce^^ses are present, ihe iwo lalernl are genorully the Inrgesi, as if ihey represented 

 a more vigorous series of development Ihan that in the centre. To wbicb it mny be 

 added, that where moro, than ibree rows of processes are prosent , neveriheless, the 

 number ihree seems fundnmenial. The scionuTic reader will readily understand ihis 

 by refiTcnce lo Ihe accompanying diagram , in which the supposed inner series of 

 slamina is represented by tbree black dots ( , ), and the outer series by as many open 

 dots ( = ). ' 



Upon ihis hypoibesis ihe iwo ouler aborijve siamens of Zygoslaies are represeniod 

 by tbe froe horizontal arms, and of tlic ihree inner the two lateral are allogoiher iin- 

 developed, while ihe anlcrior appenrs in the form of the fleshy process at ihe base 

 of the lip. 



1. ZYGOSTATES COR^CTA Lindl. l. c. : 



Z. pelaiis rliomboidesis im^flio tantum serratis, lal.ielli appendire in- 

 legra, hracliii.-^' apice bilobis. 



Spike about four inches long, wiih sbort acnte bracts. Leavcs narrowly Inticoo- 

 late , nol so long. Sepals ovate , obluse , ihe dorsal revoluie at tbe margin. Pelals 

 wedge-shaped and entire at the base . as well as ihe apex. Lip serrated like the pe- 

 tals, crimson, acuie. Horizontai arms dilaled and 2-lolied al ihc end. 

 Wild in Brazil — Prince iMa.ximiiian of Wied Neuwiod. 



2. ZYGOST.XTES LUNATA Lindl. l. c. : 



Z. pi-.lalis lnnalis inciso-serratis basi ciinoalis iiitepris, lahelli appcn- 

 (lice apice 3-loba, lobis latiiralibiis divergtnliliiis, ))racliiis apice tlobosis. 



Very like ihe last, but the flowers are Inrgor and furllior apart. The petals aro 

 not enlire al ihe point, bui regulnrly fringed all round, except at ibe cunoaie baso ; 

 the appendi.x of ibe lip torminates in iwo diverging lobes, nnd the horizontal arms 

 are globular at Ibe end. tbe colnmn is also mure .«lender Sepals wbitish. l»otals 

 greenish-yi Ilow, according lo Descouriilz. 



Wild in lirazil; on irees near ihe town of Mariana, in ihe province of Minas-Ge- 

 raes— Martius; nn iroes on ihe higlicst wooded mouniains of tbe district of Banannl, 



VI. 117 



