956 NOTES ON SOME GENERA AND SPECIES OF AMERICAN ORCHIDACES. 
P. floribunda. Jd. t. 84. Next the 
last. 
P. secunda, Jd. t. 85. Next P. pul- 
chella. 
P. diffusa. Jd. t. 86. Next the last. 
P. ephemera ; folio oblongo emarginato 
cauli zequali, pedunculo bifloro folii longi- 
tudine, sepalis ovato-lanceolatis acumina- 
tissimis inferiore apice bidentato, petalis 
obovatis acuminatis, labello linguiformi, 
ovario triptero.— Brazil, Descourtilz. 
P. auriculata ; folio oblongo-lanceolato 
caule longiore, racemis subgeminis nutan- 
tibus paucifloris folio tripló brevioribus, 
floribus subglobosis, sepalis ovatis conca- 
vis equalibus lateralibus bifidis, petalis 
ovatis sepalis subeequalibus, labello ovato 
concavo basi auriculis duabus subulatis 
clavatis, clinandrio integerrimo. — Brazil, 
Descourtilz. ! 
$ 39. Caulescentes. 
P. restrepioides ; foliis oblongis coria- 
ceis obtusis racemis nutantibus multifloris 
brevioribus, bracteis membranaceis cucul- 
latis apiculatis pedicellis capillaribus bre- 
vioribus, calycis membranacei colorati lo- 
bis cymbiformibus acuminatis sub:quali- 
' bus inferiore emarginato, petalis lanceola- 
tis acuminatis sepalis brevioribus, labello 
angusto lobis lateralibus membranaceis 
abbreviatis intermedio lineari carnoso re- 
curvo.—Peru, in the Province of Chaca- 
poyas, Mathews.— Pollen-masses two. 
Flowers very large. This, P. secunda and 
P. grandiflora are exceedingly like Restre- 
pias in general appearance. 
 SrECKLINIA. Gen. et Sp. Orch. p. 8. 
Sp. flexuosa, Póppig, t. 90. Mathews, 
No. 1911, is not a genuine species of this 
genus. It wants the gibbosity of the late- 
ral sepals at the base, and they are, more- 
over, united. It is rather a Pleurothallis 
allied to P. Grobyi. See that genus. 
am not sure that all the Pleurothallides 
with distinct sepals should not be referred 
to Specklinia; or perhaps Specklinia itself 
would be better considered a section of 
Pleurothallis; so few species have been 
seen alive, and their flowers are so minute 
Lon] 
that it is at present, perhaps, impossible - 
to form a correct opinion upon the subject. - 
LrPANTHES. Gen. et Sp. Orch. p. 10. 
L. biloba ; vaginis caulis laxis ciliatis, 
folis is inatis t ti 
apiculatis, racemis capillaribus flexuosis 
foliis equalibus, petalis apici columne ad- 
ovato 
ceola 
OVdatU-1dllvuctuildovu 
. natis pubescentibus, labello libero cuneato 
bilobo laciniis acuminatis divaricatis.— 
Trunks of trees, at an elevation of eight 
thousand feet, Valley of Lloa, Col. Hall. 
.mucronaía ; vaginis caulis glaberri- 
mis aristatis, foliis ovato-lanceolatis acumi- 
natissimis acuté bilobis mucronatis, pedun- 
moideo columnam amplexantibus interme- — 
dio nano obtuso ciliato.—Trunks of trees, 
valley of Lloa, at the height of eight thou- : 
sand feet, Hall.—A most curious species, - 
with a highly complicated structure in the | 
flower. 
Srenocrossum. Gen. et Sp. Orch. 
p- 62. 
The character of this genus was derived 
from the description and figure in Hum- 
boldt and Kunth’s Nova Genera et Species 
Plantarum. A new species in Mr. Mathews 
Herbarium shows that the genus does not 
belong to the division Dendrobiew in Ma- 
laxidee, but to Pleurothallez, in the 1m- 
mediate vicinity of Pleurothallis itself. The 
lateral sepals are not adherent to the basé 
of the column, except in a slight degree. 
St. subulatum (Hooker Ie. Plant. t. 51); : 
labello petalisque lineari-subulatis, 
ovato-lanceolatis tr 
Pichincha, Jameson, 
Pleurothallis, of which it 
its distinction must depend upon thé 
ber of pollen-masses being four, 
iveniis.—On trees - 
Pichulagua, on the western declivity 9' 
