160 ORCHIDES. 



PLEUROTHALLIS. 



tibus diraidium Pl. Cardii aequans. Fios uli in illo. Caulis aequiiongus. Folium supra 

 basin prope aequilaluni. Caracas. 4000'. October. Wagener. 



52. PLEUHOTH.ALLIS MACROCARDIA Rchh. fll. in Bonpl. III. 72: afif. Pl. cordatae llori- 

 bus maximis, l;ibello ohlongo .<ubcorilato acuto apicem versus serralo . lepalis lineari- 

 lanceolatis apice serralis. — Caulis secundarius quinquepollicaris. Folium se.x polli- 

 lices longiim, plus duos lalum , oblongo-acuminalum alte obluseque cordaium. Flo- 

 res pollicem longi . bivalves. Sepalum utrumque oblongo - lanceolaium. Tepala cum 

 lahello aequilongo .sepalis paulo breviora. Lahelli unguis linois iransversis notatus: 

 lamina trinervis , plicula in basi. Gynosiemium laeve crassum Pl. cordatae. Flores 

 brunnci. 5000' Ocanna Nov. Granat. Wagener. 



53. PLElHiOTHALLlS MONOCARDIA Rchb. fll. in Boppl. III. 72: alL Pl. ionanlhae Rchh. 

 fll. fulii.s quadrdplo majorihus ohovato - lanceis bene cordatis , floris bivalvis sepalo 

 superiori ligufato , inleriori transverso ovaio aculo , lepalis falcalis linearibus. labello 

 angusie ligulato hasi cordato, acuio. — Caulis quinquepollicaris. Foliuni tres polli- 

 ces longum . plus unum supra basin latum , pergameneum. Flos quam in Pl. ionan- 

 tha duplo major; ..brunneus". Ocanna. Wagener. 6000'. 



54. PLEUROTHALLIS CAHDIOSTOLA Hchh. fil. in Bonpl II. 26: caule secundario com- 

 pres.so lereliusculo, folio basi cordato , iohis contiguis oblongo acuminaio , inverse 

 deflexo, pedem prope caulis tegente. spaiha brunnea , — flore inverso (solitario?) 

 flavo , sepalo summo ovato acuto. inferiori (hic superiori ex inversione) orbiculari 

 acuto, tepalis oblongis acuiis dimidio rainorihus , lahcllo minuto, basi cordalo , ae- 

 qualiler ohtuse trilobo. Flores pallide llavi , diametro 5 linearum. Folium ullra 6 

 pollices longura . raedio et basi duos pollices latum. Caracas. 6000'. Juli. Wagener. 

 Rchb. fil. in Xenia Orch. Tab. 28. p. 72. 



55. PLEUROTHALLIS MICROCAHDIA Hchb. fll. in Bonpl. IIL 72: afl'. Pl. undulatae EndL 

 Popp. folio a basi niinuie cordata lineari-ligulato, acuminaio undulalo, labello trian- 

 gulo cordaio ohtuso papuloso minuto ; sepalis longe attenuatis. — Caulis secundarius 

 longissimus usque octopollicaris , tenuis. Folium tripollicare , vix diinidium pollicem 

 supra basin latum. Flores angustissimi prope pollicem longi. Tepala uti in Pl. un- 

 dulaia a basi lineari-lancea acuminaia margine scabrido- cilioiata. — Ocanna. Kov. 

 Granat. Wagener. 



Obs. Cl. Lindley (Fol. IX) haec. „Siem very long, as much as 8", slender. Leaf 

 ^"XVa"- Flowers very narrow , nearly I". Pfcta/s as in P. undulata, linear-lan- 

 ceolate, acuminate, scabrous ad lUe edge." So far Hchh, and if there is no misprint 

 in his descnption, this must he near P. grandiUora. Bul I have a specimen from 

 himself, without flowers , and wilh slems only 3, not 8, inches high , and evideully 

 close to P. iridenlata. 



Ad haec ego : caulem dixi usque octopollicarem. Caules non floridi adsunt vix bi- 

 pollicares in altero specimine meo. Pieurothallidis grandillorae foliuin bene evolutum 

 quinquies lalius; at omnia quae hujus habeo folia apice lantum abrupte angustala, 

 dum in microcardia a parle suprahasilari angustaia. Idem de sepalis valet. PI. 

 tridentata me judice longe recedit Uore brevi , sepalo inferiori hifldo et mihi PI. discoi- 

 deae Lindl. perafflnis videlur. 



— Typus Pleurothallidis iindulatae EndL Popp. — 



56. PLEUROTHALLIS CROCODILICEPS Rchb. fll. in Bonpl. III. 72: alT undulalae Popp. 

 Endl. ; caule secundario anci|)iti , folio oblongo - ligulaio aculo , pedunculo gracillimo 

 valde elongato , lahello reciangulo retuso abbreLviato , gynostemio elongato clavaio 

 ▼elutino (!). — Caulis secundarius adesl quadripollicaris valde coinpressus aiato-an- 

 ceps. Folium pergarneneum quadripollicare . unum pollicem latum npice aculum basi 

 rolundalum ccterum subaequilalum. Pedunculus incluso ovario pedicellaio bipolli- 

 caris. Braclea vaginiformis supra medium. Sepala ligulaio - linearia suhaequalia rin- 

 gentia. Tepala linearia acuminata subaequilonga. Labellnm a basi humeraia cordata 

 Ujvergens, subiio uirinque emarginatum apiceni usque retuso-roiundalum ; lioea media 



