BOGARIN et al. New species and records of Orchidaceae


COSTA RICAN MATERIAL STUDIED: Alajuela: Upala,
Aguas Claras de Buenos Aires, Hotel Termales
Azules, camino por la ladera del Volcan Rinc6n de
La Vieja, hasta las cataratas, 700-2000 m, 6 abril
2004, A. Karremans 271 (JBL-spirit!). Upala,
Bijagua, Zapote, desvio a la izquierda despues
del puente sobre Rio Zapote en sentido Bijagua-
Pueblo Nuevo, ladera este del Volcan Miravalles,
siguiendo la margen del Rio Zapote, 10044'37.4"N
8505'14.9"W, 650-700 m, bosque muy humedo
tropical, transici6n a premontano, epifitas en bordes
de potreros y arboles aislados, 1 febrero 2006, D.
Bogarin 2352, R.L. Dressier, R. Gomez & A. Rojas
(JBL-spirit!) (Fig. 9, 15-H).

 This species is similar to Lockhartia micrantha
Rchb.f., but the lip is six-lobulate with a pair of
narrow basal lobules folding upward, two acute
lobules placed at the middle, and two apical, rounded
lobules. The callus is made up by two parallel keels
running to the middle and convergent at apex. The
illustration shown in Garay and Dunsterville (1966),
and identified as L. chocoensis, is consistent with
the specimens studied from Costa Rica. Lockhartia
lankesteri Ames, based on a collection by C.H.
Lankester from Aguas Zarcas, San Carlos, in the
Atlantic lowlands of Costa Rica, has been reduced into
the synonymy ofL. micrantha. With the discovery of
L. chocoensis populations in Upala, close to the San
Carlos region, it is now probable that L. lankesteri is
a later name for L. chocoensis. The drawing of the lip
from the holotype ofL. lankesteri at AMES (AMES-
101030) is somewhat schematic however it shows
two small lobes at the middle of the lip. A careful
rehydratation of the flowers of the type should clarify
the status ofL. lankesteri.

10. Maxillaria bolivarensis C.Schweinf., Bot. Mus.
 Leafl. 20: 22. 1962. Type: Venezuela. State of
 Bolivar, Region of Uriman, forest mesa of Aprada-
 tepui, at 950 m, August 13, 1953, L. Bernardi 780
 holotypee, MER, not seen; isotype, AMES-69561,
 photo).

DISTRIBUTION: Costa Rica, Venezuela, Ecuador and
Peru. The Costa Rican records are not so far away from
Nicaraguan boundary. This species may well occur in
Nicaragua, Panama and Colombia.


 ETYMOLOGY: from the State of Bolivar, Venezuela
 where the type specimen was collected.

 HABITAT IN COSTA RICA: epiphytic in tropical wet forest
 along the Caribbean lowlands.

 COSTA RICAN MATERIAL STUDIED: Heredia: Sarapiqui,
 Horquetas, above Horquetas, Terra Folia Reserve,
 near Rara Avis, wet premontane forest, epiphytic,
 10018' 14"N 840 01'36" W, 500 m, 21 July 2003,AM.
 Whitten 2030 & M. Blanco (JBL-Spirit!); Sarapiqui,
 Magsasay, ribera del Rio Peje, 180 m, 31 diciembre
 2005, C. Ossenbach 507 & J.E Casasa (JBL-Spirit!)
 (Fig. 10, 15-I).

 This species is easily recognized by the
 inconspicuous pseudobulbs, the linear-oblong,
 coriaceous leaves less than 1.5 cm wide, and the
 smooth clinandrium and anther cap. In Costa
 Rica, Maxillaria confusa Ames & C.Schweinf. is
 superficially similar to M. bolivarensis, however its
 conspicuous pseudobulbs, broader subcoriaceous
 leaves (up to 3 cm wide), fringed clinandrium and
 ciliate anther cap are useful features to recognize this
 species.

 11. Myoxanthus speciosus (Luer) Luer, Selbyana 7:
 51. 1982. Pleurothallis speciosa Luer, Selbyana
 3: 392. 1977. Type: Panama: Chiriqui: epiphytic
 in cloud forest above Guadalupe, ca. 2000 m,
 13 September 1976, C. Luer & H. Butcher 1371
 holotypee, SEL).

 DISTRIBUTION: Costa Rica and Panama.

 ETYMOLOGY: from the Latin speciosus, "splendid", in
 reference to its showy flowers.

 HABITAT IN COSTA RICA: epiphytic in lower montane
 rain forest at 2450 m of elevation in Talamanca range.

 COSTA RICAN MATERIAL STUDIED: San Jose-Cartago:
 Dota-El Guarco, Jardin, entire La Chonta y Cafion,
 km 56 carretera Interamericana, Finca Santa Maria
 de La Selva, 9041'27.5"N 83055'20.3" W, 2450 m,
 epifita en bosque pluvial montano bajo, en arboles
 de potreros principalmente sobre Drymis winteri,
 Alnus acuminata y Quercus sp, 19 febrero 2005, D.
 Bogarin 1420, C. Ossenbach & E Pupulin (JBL-
 spirit!) (Fig. 11).

LANKESTERIANA8(2), August 2008. 0 Unversidad de Costa Rica, 2008.