LANKESTERIANA


 Basionym: Chondrorhyncha reichenbachiana Schltr.,
 Repert. Spec. Nov. Regni Veg. 17: 15. 1921.

Euryblema Dressier, gen. nov.
 Warczewiczellae Rchb.f similis, sed labelli callo
laminiformi, sepalis petalisque anatonis iia, i
 Type species: Cochleanthes anatona Dressier, Die
Orchidee 34(4): 160. 1983.
 Fi i .1i- *r From the Greek eurys, broad, and blema,
blanket or cover, referring to callus shape.

 First described as a Cochleanthes because of the
short, rounded chin and the shield-like viscidium,
and then transferred to Chondrorhyncha by Senghas
(1990), C. anatona does not fit either group well, and
it together with C. andreae Ortiz, make a distinctive
group with high bootstrap support. Vegetatively both
are easily recognized by their red spotted leaf sheaths
(or stem base). Euryblema resembles Warczewiczella
in the short, blunt chin and in the broad, shield-like
viscidium/stipe. The callus, however, is broad and
laminar, covering about the basal half of the lip. The
name Euryblema refers to this "broad apron". Further,
the sepals and petals of both species curve upwards, and
both have the leaf sheaths marked with red. The genus
consists of two described species. We have not been
able to obtain material of Cochleanthes thienii Dodson,
which is possibly congeneric with these two species.

Euryblema anatonum (Dressier) Dressier, comb. nov.
 Basionym: Cochleanthes anatona Dressier, Die
 Orchidee 34: 160. 1983.
 Dressler (1983a) illustrates this species.
Euryblema andreae (Ortiz) Dressier, comb. nov.
 Basionym: Chondrorhyncha andreae Ortiz, Orqui-
 deologia 19(4): 13. 1994.
Possibly congeneric: Cochleanthes thienii Dodson,
Icon. P1. Trop. t. 026. 1980.

 Kefersteinia Rchb.f. -This is a group (more than
sixty described species) of small plants with small
flowers. Its most distinctive synapomorphies are a very
thin inflorescence axis and a ventral keel on the column.
The basal callus and the ventral keel of the column
position the pollinator so that the pollinia are attached
to the base of an antenna of a male euglossine bee; this
pollinarium deposition site is unique among euglossine-
pollinated orchids. Szlachetko (2003) elevated Kefer-
steinia sect. Umbonatae Senghas & Gerlach to generic
level as Senghasia, and distinguished it from sect.
Kefersteinia on the presence or absence of a large
umbonate lip callus. Our sampling includes four taxa


in sect. Umbonatae (K. excentrica, K. guacamayoana,
K. trullata, and K. maculosa) and two species from
sect. Kefersteinia (K. expansa and K. microcharis). Our
results indicate that these sections are not monophyletic.
At present, we choose not to recognize Senghasia
because it would unnecessarily split a monophyletic,
morphologically distinctive genus into two groups that
are unlikely to be monophyletic.

Echinorhyncha Dressier, gen. nov.
Warczewiczellae Rchb.f similis, sed appendicibus
echinatis sub column iir,
Type species: Chondrorhyncha litensis Dodson, Icon.
Pl. Trop., ser. 2, 5: pl. 417. 1989.
 Etymology: From the Greek echinos, sea urchin
or hedgehog, and rhynchos, beak, referring to the
appendages under the column.

This clade consists of four or five species that resemble
Warczewiczella, but the column bears two or more
bristly, sea urchin-like appendages on the underside.
The stipe is pandurate or narrowed basally. Drawings
ofE. ecuadorensis and E. litensis are given in Dodson
(1989, plates 415 and 417, cited below).

Echinorhyncha antonii (Ortiz) Dressier, comb. nov.
 Basionym: Chondrorhyncha antonii Ortiz, Orqui-
 deologia 19: 14. 1994.
Echinorhyncha ecuadorensis (Dodson) Dressier,
comb. nov.
 Basionym: Chondrorhyncha ecuadorensis Dodson,
 Icon. P1. Tropic. ser. 2, 5: 415. 1989.
Echinorhyncha litensis (Dodson) Dressier, comb. nov.
 Basionym: Chondrorhyncha litensis Dodson, Icon.
 P1. Tropic. ser. 2, 5: 417. 1989.
Echinorhyncha vollesii (Gerlach, Neudecker &
Seeger) Dressier, comb. nov.
 Basionym: Chondrorhyncha vollesii Gerlach,
 Neudecker & Seeger, Die Orchidee 40(4): 131.
 1989.

Aetheorhyncha Dressier, gen. nov.
 Chondroscaphi (Dressier) Senghas & G. Gerlach
similis, sed secundo callo distali d,, i,.ii. labello
carina basali ornato, viscidio triangulari ,littrrt.
 Type species: Chondrorhyncha andreettae Jenny, Die
Orchidee 40(3): 92. 1989.
 Etymology: From the Greek aethes, strange or
different, and rhynchos, snout or muzzle.

Chondrorhyncha andreettae Jenny is weakly supported
as sister to the group here treated as Ixyophora, but


Vol. 5, N 2