NEW OR NOTEWORTHY ORCHIDS 
sometimes slightly dilated anterior portion, obtuse. Label- 
lum 3-lobed, smaller than the petals, minutely pubescent; 
lateral lobes dolabriform-peltate (as is common in Lepan- 
thes), the anterior part markedly larger than the basal por¬ 
tion; middle lobe minute, lanceolate. Column semicylindric, 
shorter than the labellum, somewhat dilated at the apex.. 
Lepanlhes grandiflora appears to be closely related only 
to L. Chameleon Ames, which differs in the more hispid 
cauline sheaths, the prominent peduncles and dissimilar 
petals. 
The description was prepared from dried specimens as 
well as from material preserved in formalin. 
Costa Rica, La Pastura, Irazu, C. H. Lankester 1190, 
May 1928. 9500 feet altitude. “Rare and local, on tree 
trunks. Flower hyalinaceous purple; petals maroon.” (Type 
in Herb. Ames No. 34210.) 
Lepanthes guanacastensis A. & S. sp. nov. Herba 
minuta, epiphytica, caespitosa. Radices fibratae, crassae 
ut videtur. Caules monophylli, breves, filiformes, pauciar- 
ticulati. Folium late cuneato-spathulatum vel obovatum, 
in apice rotundatum. Inflorescentiae saepissime singulae. 
Flores duo, magni. Sepala ovata, abrupte caudata; lateralia 
in laminam profunde bidentatam connata. Petala ob- 
ovato-subquadrata, in medio callosa. Labellum trifidum; 
lobi laterales in circuitu triangulares, margine exteriore 
bilobato; lobus intermedius minutus, lineari-triangularis. 
Plant very small, about 2 cm. tall, caespitose, epiphytic. 
Roots fibrous, short, very stout, flat and chlorophylligerous 
like those of Taeniophyllum. Stems filiform, consisting of 
2-3 internodes of which the lowermost is very short and 
the uppermost the longest, up to 9 mm. long, monophyllous, 
onelosed in minutely scabrous sheaths which terminate in 
rather conspicuous infundibuliform hispid mouths. Leaf 
broadly cuneate-spatulate or obovate, indistinctly petioled, 
up to 1 cm. long, 3.5-5 mm. wide, rounded and minutely 
tridenticulate at the apex, cuneate-narrowed at the base, 
®roct, margined, coriaceous. Inflorescences solitary or rarely 
45 
