it shows an autogamous plant in which the pollinia wrap them- 
selves around the rostellum. Consequently, when the flowers 
are dissected, the rostellum always becomes ruptured and 
torn, showing a 3-dentate clinandrium. The situation is the 
same in the type-collections of Sauroglossum tenue, Spiran- 
thes amabilis and Cyclopogon stenoglossus. It is rather obvi- 
ous that we are dealing with a rather widespread species with 
very little internal variation. On the other hand, the Descourtilz 
drawing represents a distinct, outcrossing species which is 
limited in distribution to southern Brazil. For those plants I 
propose the name Hapalorchis Lindleyanus. 
Hapalorchis Lindleyanus Garay, sp. nov. 
Terrestris erecta, usque ad 30 cm. alta; radicibus crassis, 
villosis; foliis plurimis, petiolatis, petiolis canaliculatis, 
gracilibus, base vaginatis, usque ad 3 cm. longis; laminis 
Ovatis, acutis, basi rotundatis, usque ad 4.5 cm. longis, 2 cm. 
latis; pedunculo erecto, vaginifero, supra laxe paucifloro; brac- 
teis ovato-cucullatis, longe acuminatis, usque ad 1.5 cm. lon- 
gis, sursum decrescentibus; floribus satis tenuibus, extus basin 
sparse pubescentibus, secundis; sepalo postico lineart- 
oblongo, concavo, apiculato, usque ad 8 mm. longo, 2 mm. 
lato; sepalis lateralibus porrectis, oblongo-linearibus, acutis, 
usque ad 8 mm. longis, 1.2 mm. latis; petalis lineari-spathulatis, 
subacuminatis, margine superiore subcrenulatis, usque ad 8 
mm. longis, 1.3 mm. latis; labello ima basi excavato, lamina 
primum subquadrata, deinde in lobum reniformem expansa, 
disco in centro pubescenti, basin margine incrassata, antice 
lineis ternis valde discoloribus ornata; toto labello usque ad 7 
mm. longo, 5 mm. lato; columna usque ad 5 mm. longa; ovario 
ovoideo, pubescenti, usque ad 8 mm. longo. 
Brazil: Therezopolis, Rio, M. & R. FOSTER 1005! type! 
(AMES). 
As I stated above, the specimens referable to this rather 
common species have always been confused with H. lineatus 
from which it differs in having larger floral segments and dis- 
similar lip. 
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