75 



" M. Achillc Richard* has given an account of an analogous monstrosity in Orchis latifolia. In this case of a 

 tnandrous Orc/us, M. Richard, having adopted the opinion, winch I believe I was the first to advancef, of the origin 

 or nature of the auriculae of the anthera of many genera of Orchidece, considers the additional anthera. as formed by 

 the perfect developement of these auriculee. This view however cannot be taken of the monstrosity of Habenaria 

 bifoba, m which not only the auriculae of the anterior or ordinary stamen are distinctly present, but two other similar 

 processes, one on the anterior side of each of the additional anthera^, also exist; a fact which throM's considerable 

 doubt on the correctness of the view here referred to of the nature of these processes in Orchidew, unless the same 

 hypothesis could likewise be extended to all cases of trifid filaments, as those of AlUum and Deutzia, to which the 

 auriculae in Orchidece may be said to be analogous, 



" In ScitaminecB, the family most nearly akin to Orchidece, the complete number of stamina may be considered very 

 generally present. Only one, however, is antheriferous ; and this perfect stamen, instead of corresponding, as in 

 Orchidece, with the anterior segment of the outer series of the perianthium, is placed within the posterior segment of 

 the inner series ; the two remaining barren stamina of the same series being the epigynous glands or filaments existing 

 in all the genera of this order except CostusX ; while the outer series of stamina, very differently modified, form the 

 innermost or supplementary series of the perianthium. 



" This view of the origin of that series was many years ago communicated to me in conversation by the celebrated 

 Correa de Serra; but was first, I believe, published in 1826 by Professor Lestiboudois in a memoir § in which the 

 correctness of the opinion held, namely, that ScitaminecB and Cannece possess rudiments or modifications of six stamina, 

 is remarkably contrasted with the erroneous views taken, or rather adopted, of the greater part of the structures ad- 

 duced in support of it. 



" A more accurate account of the relative position of parts was given in 1828 by my ingenious friend Professor 

 Von Martins. In confirmation of the opinion, I may remark that the cells of the ovarium, whose relation to the 

 floral envelope appears to be very uniform in Monocotyledones\, are in Scitaminece opposite to the supposed petaliform 

 stamina, and to the divisions of the outermost series of perianthium. I have formerly pointed out the difference in 

 position of the antheriferous stamen in Scitaminece and that of Cannes or Marantece, and have remarked that this 

 diflference is in some degree analogous to that existing between Cypripediiim and the other genera of Orchidece^. 



"Apostasia in its trilocular ovarium diflfers from all the genera of Orchidece; but an analogous difference occurs in 

 ScitaminecB, in which Globba is distinguished from every other genus in having its ovarium unilocular, with three 

 parietal placentee. And in both these families it may be proved that the constituent parts of the compound ovarium, 

 whether unilocular or trilocular, agree in position, or in their relation to the divisions of the perianthium. 



" Lastly, Apostasia in the economy of impregnation, or the state of the pollen, and the manner of its application 

 to the stigma, probably differs essentially from all Orchidece, except perhaps Cypripedium and possibly Vanilla. But a 

 similar difference, and in a degree still more striking, exists between Apocinece, as I have formerly proposed to limit 

 that order, and Asclepiadece, which can only be regarded as a subdivision of the same natural do.^^:' —Brown MSS. 



APOSTASIA Wallichii. Tab. 84 



Anthekarum lobls posticis in^qualibus, filamento tertio c^^iv^to.-Broton MSS 



Apostasia fVallichii, Brown MSS. . . , « ^ . * -i- 



Habitat in valle Napali^ minore, Noakote dicta, terrestris infra arbores, florens et fructigera mense Aprdis. 



Planta terrestris omnin6 laevis, erecta, rigidiuscula, pedalis. Radix constans ^ir^. aliquot cylindricis, rigidis et sublignosis, valdfe 

 londs 6-8 auin I'o-pollicaribus, pennam columbinam crassis, glabris, minutim striatulis, fuscis, indivisis, extremitate infenore parihn 

 fibz'llosis, e basi caulis alternatim rect^ et fere parallel^ descendentibus. Cauus graeilis cylindricus, indivisus, calamum scr.ptonum 

 crassus indutus vaginis foliorum brevibus, striato-subnervosis, adpressis, ore obbqu., m er.or.bus dem^m nud.s Foua numerosa, ap- 

 rrita undique sparsa et patentia, recurvato-nutautia, graminea, membranacea, plana, ^ntegernma levitfer undulata, ens.form- 

 ancZ a ZtlLZ^cmZ^ attenuata, deorsum angustata et acuta, ipsa basi tamen dilatata, suba.plex.auba et .n vag.na. des. 

 lanceoiaia, m acumen g atroviridia, nitida, striata, subths glauca, 5-nervia, multilmeata, nervis gracillimis 



nenti.,6-,0-polUcar,a,med,„.e™pd^emta», u^^^^^^^^^ ^ ._^^^^___ ^^ ^^^^^^^^^ ^^^^_^^. ^^_^.^^._ ,„^,„„^,^„,„„„,^,, 



:MSr.irl"M»t"pl^ bJio.e.:3-po.Uc»s,fr„c.ifeH par.. elo„ga«, a-po.Ucares, panicla™ defle.o.pa.e„.e., .e™U 



202 J^ Prodr. Fl. Nm. Holl. \. pp. Z09 h sn. 



* Mem. de la Soc. d'Hist. Nai. de Parts, . p. ■ ^ Memoire siir le Canna indica et sur les families des Balisiers et des Batianiers. 



II Appendix to Denham and Clairperton s Ti avels, p.2iJ. li^ 



