370 OPHRYDE. 
union of the lateral sepals loses its value by means of D. tripetaloides in 
which they are separate ; the want of an appendage to the lip, which is a 
character of D. oppositifolia, is of no importance because of the presence 
of an appendage in D. tripetaloides, and moreover the genus Ceratandra for- 
bids us to attach consequence to this circumstance. If the structure of 
Dryopeia were really such as is described by Ach. Richard, it would 
doubtless be a genus perfectly distinct from Disperis; but I presume there 
is some error in the description published by that learned botanist. 
$ 1. Labellum appendice auctum. 
1. Disperis capensis, Swartz, l. c. Thunb. Fl. Cap, ed. Sch. 95. Ker in 
Brande's Journal. v. t. 1. f. 2. 
D. caule apice glabro basi patentim piloso, foliis linearibus accuminatis 
apice setaceis, floribus solitariis, sepalis omnibus liberis glabris acumi- 
natissimis, labello lineari-lanceolato appendice pone apicem acuminato 
utrinque dentato. 
Arethusa capensis. Linn. Suppl. 405. 
Hab. ad Cap. B. Spei; in Leuwekop, in collibus infra Tafelberg et urbem, 
inque summitate montis Tabularis, Thunberg ; Burchell 8527 ; Ruigte- 
valei, Drege. (hab. s. sp.) 
Sepala patentissima, acuminatissima, lateralia pone basin, supremum 
sub apice saccatum, petalorum margini arctissime agglutinatum. Pee 
tala subcucullata, oblonga, obtusa, margine posteriore subrhomboidea, 
leviter pubescentia.  Labellum lineare, spatulatum, apici columnz 
flexurá sigmoidead adnatum, apice membranaceum acuminatum re- 
flexum, sub apice subtuberculatum appendice brevi lanceolata lacera. 
Anthera erecta, bilocularis, ad dorsum sita stigmatis maximi membra- 
nacei rhomboidei : processibus spiraliter tortjs cartilagineis acuminatis. 
2. Disperis secunda, Swartz, l. c. Thunb, l. c. Ker. l. c. 5. t. 1. f. 3. 
D. foliis linearibus, racemo laxo folioso secundo, sepalis lateralibus diva- 
ricatissimis unguiculatis saccatis (sacco basi obtuso calloso), labello 
cordato-ovato acuminato apice cucullato, appendice lineari apice vil- 
loso. 
Orchis circumflexa. Linn. Sp. Pl. 1344. 
Arethusa secunda. Thunb. Prodr. 3. 
Hab. ad Cap. B. Spei ; prope urbem, florens Aug. et mens. seq. Thun- 
berg ; in Draakensteensbergen, Dr?ge. (hab. s. sp.) 
Petala galez agglutinata, rhomboidea, angulo externo obtuso. Labellum 
ovatum, acuminatum, complicatum, apice saccatum, appendice longo 
filiformi apice villoso intra galeam intruso desinente. Processus stig- 
matici inter membranaceam et cartilagineam, obtusi. Flores ochro- 
leuci. 
3. Dispreris micrantha. 
D. caule debili 1-3-floro diphyllo, foliis cordatis amplexicaulibus glabris, 
sepalis aristatis lateralibus multó minoribus medio saccatis, labello s& 
gittato appendice lineari apice dilatato rotundato villoso. 
Hab. ad Cap. B. Spei, Mund. (hab. s. sp. comm. cel. Hooker.) 
Species omnino Dryopeiarum Mascarensium facie. 
