COSTA RICA. C. H. Lank.oter.

434. Sigmatostalix costaricensis, Rolfe; S. Eliae, Rolfe,
afllnis sepalis petalisque longioribu8, et labello sa.gittalo-cordalo
differt.
P seudobulbi aPl'roximati, ovato-oblongi, compressi. aculanguli,
2-2'5 em. longl,apice monophylli, basi 2-3-phylli. Folia
oblongo-lanceolata, subacuta, 5- 12 em. longa, 1·2-1-6 cm. lala.
Scapi graciles, 15-20 cm. longi, multiflori. Bracteae ovatolanceolatae. acutae, 3 mm. longae. P edicelli 4 mm. longi.
Flo... parvi. Sepala et petal a reflexa, lanceolata, acuta,
8-9 mm. longa . Labellum patens, unguiculalum, sagittaloovat um , 8ubconv6"Xum, minute apiculatum, 6 mm. Ion gum,
5 mm. latum; lobi laterales recurvi, 1 mm. longi; unguis 2 mm.
longus; crista suberecta, dentiform is, 8ubobtu8". Co lum7lO
arcuala, 6 mm. longa, basi gracilis; .. Iae subobsoletae.
COSTA RICA.
C. H. Lank.oter.
Preoented to Kew by Mr_ C. H. Lankester, and flowered in
the collection in October, 1915.
The sepals and petals "re
greenish-yellow, with a large brown blotch about the ~lltre, and
the ltp red-brown, wIth a deep yellow apex and margIn.