322 MR. H. N. RIDLEY’S REVISION OF THE 
species are spathulate and not linear, and the single sepal is ovate 
and not lanceate triangular. 
9. MicrostyLıs Warminat, Reichb. f. Otia Hamb. p. 94; 
Warming, Aftr. Vidensk. Meddel. Nat. Foren. 1888, p. 848, t. iv. 
fig. 5. 
Prope bipedalis; folia ad 6 inzqualia usque 2 pollices lata, 
84 longa, petiolata elliptica obtusiuscula, sicca subcuprea; scapus 
7-angulatus, omnino supra folia usque ad inflorescentiam nudus ; 
racemus amplus congestus, 3-uncialis ; bractes semilancex, uni- 
nerves, pedicellis subequantes; sepalum posticum oblongum 
lanceolatum subobtusum, marginibus revolutis; lateralia falcata 
obtusa (ex icone), basi connata (an semper ?) labellum multo su- 
perantia; petala linearia angusta ; labellum cordatum apiculatum 
subobtusum, auriculis brevibus latis rotundatis, fovea distincta ; 
columna brevis, dentibus brevibus acutis. 
Brazil, Lagoa Santa, Warming. 
10. M. FLORIDANA, Chapman, Fl. S. Un. States, p. 454. 
Caulis gracilis, 3-uncialis, basi serius incrassata ; folia bina 
dissita ovata vel elliptica petiolata, subacuta, inzqualia suberecta, 
lamina maximi, 2 uncias longa, unciam lata; petiolus 1-13 
uncias longa ; scapus gracilis ad 8 uncias longus, basi longe nuda; 
racemus laxus; flores plures parvi; bractes lanceolate acute ; 
pedicelli tenues j-unciales, suberecti patuli; sepala lanceolata 
oblonga, patentia marginibus revolutis; petala linearia torta; 
labellum ovatum cordatum abrupte apiculatum ; auriculis rotun- 
datis curvis obtusis; fovea rotundata majuscula depressa ; columna 
brevis ; capsula oblonga elliptica suberecta, 1 unciam longa. 
North America, Apalachicola, Florida ! 
I have to thank Dr. S. Watson for sending me a tracing and 
flowers of this very rare plant. 
11. M. ROTUNDATA, n. sp. 
Caulis gracilis, 14 uncias longa, basi pseudobulbosa incrassata, 
2 unciam longa ; folia bina valde insequalia ovata cuspidata breviter 
petiolata, reticulata, maximum 13 uncias longum et latum ; scapus 
erectus, 6-uncialis, basi longe nuda, apice racemoso ; flores plures 
parvi, 4 unciam lati, verosimiliter flavescentes, pedicellis gracilibus 
4-uncialibus ; bractew minims lauceolate subacute, vix ] pedi- 
celli equales; sepalum posticum late ovatum obtusum, lateralia 
angustiora obtusa; petala his ferme qualia subspathulata 
