Ames — Additions to the Orchid Flora of Panama. 151 



Killipii they are three-nerved. Other marks of distinction are found in the 

 terminal lobe of the labellum and in the stouter, ovoid spur. This species 

 is represented in herbaria by specimens from Central America that have 

 been confused with the more slender Enjthrodes vesicifera (Reichb. f.). 



PANAMA, Province op Chiriqui, Valley of the Rio Caldera, from 

 El Boquete to the Cordillera, Killip 3561, February 1st, 1918. 1,400 to 

 1,600 meters altitude. (Under the same number there is a specimen in the 

 United States National Herbarium accompanied by a different geographi- 

 cal note. The habitat is given on the label as 'Humid forest near Camp I, 

 Holcomb's Trail, near El Boquete, altitude 1,600-1,800 meters.') 



Habenaria patentiloba, sp. nov. 



Herba terrestris, erecta, mediocris, circa 36 cm. alta. Radices filiformes, 

 flexuosae, villosae, caule infimo decumbenti in tuberculum semiovoideum, 

 terminanti. Caulis strictus, glaber, vaginis foliorum pro parte obtectus, 

 basi nudus, inferne in sicco circa 4 mm. crassus. Folia disticha, in caulis 

 medio, oblongo-lanceolata, acuminata vel acuta, ad basim amplectentem, 

 vaginantem sensim cuneato-angustata, membranacea, nervo medio supra 

 sulcato et subtus conspicue carinato, plus minusve 12.5 cm. longa, 2.6 cm. 

 lata; folia inferiora mueto minora lanceolato-elliptica; folia superiora 

 oblongo-lanceolata, in bracteas sensim decrescentia. Racemus circa 9.5 

 cm. longus, laxiflorus, floribus distichis, decem utvidetur. Bracteae inflores- 

 centiae lanceolatae, longe acuminatae, dorso alte carinatae, scariosae, 

 ovaria pedicellata subaequales vel paulo superantes, usque ad 2.5 cm. 

 longae et 9 mm. latae prope basim. Floras glabri, mediocres. Sepala 

 lateralia reflexa, semiorbicularia, valde obliqua, apice obtusa, trinervia 

 nervo medio prominenti, circa 1 cm. longa et 7 mm. lata. Sepalum 

 intermedium multo minus, valdissime cucuUatum, expansum orbiculare, 

 apice revoluto irregulariter truncato, circa 6.5 mm. longum. Petala a 

 basi cuneata latissime transversa, in lobos subaequales divaricatissimos 

 sinu levissimo connexos extensa, circa 2.5 mm. alta a basis medio ad sinus 

 medium et 8 — 9 mm. lata inter loborum apices; lobus posterior lineari- 

 ligulatus, apice rotundato nuncacuto margine irregulari; lobus anticus paulo 

 brevior, triangulari-lanceolatus, ultra medium margine posteriore obtuse 

 unidentatus Labellum prope basim trifidum, omnino usque ad 2.14 cm. 

 longum; lobi laterales parvuli, anguste lineares, late patentes, 3.5 — 4mm. 

 longi, basi vix 1 mm. lati; lobus intermedins longissimus, anguste linearis, 

 carnosus, marginibus valde revolutis, apice- oblique acutus, usque ad 1.9 

 cm. longus et 2.5 mm. latus trans basim. Calcar quam ovarium pedicel- 

 latum longius, gracillimum, parte anteriore clavatum, circa 2.5 cm. longum. 

 Anthera valde cucuUata, in lobos rotundatos leviter divisa. Canales 

 graciles adscendentes. Processus stigmatis valde decurvi, carnosissimi, 

 quam canales paulo breviores. 



The unusual petals make it difficult to classify this Habenaria species 

 satisfactorily. It would seem to belong to the Quadratae. The form of 

 the labellum is suggested by that of H. virens Rich & Gal. 



PANAMA, Province of Panama, Orange River Valley, Killip 3124, 

 October 7, 1917. 60 meters altitude, dense forest. 



