ORCHIDACE^ 



Bulbophyllum erratum Ames sp. nov. Rhizoma longe 

 repens, flexuosum, vagans, circa 1 mm. in crassitudine, prope 

 pseudobulbos radicans, glabrum. Radices fibratae, abbreviatae, 

 usque ad 2.7 cm. longae, .5 mm. per medium. Pseudobulbi 

 1.4-3.5 cm. inter se distantes, 5-7 mm. longi, plus minusve 

 4 mm. in crassitudine, obpyriformes, usque ad apicem attenu- 

 ati, in sicco valde sulcati, flavescentes, nitidi, oblique erecti, 

 monophylli. Folia 1.5-2.5 cm. longa, usque ad 6 mm. lata, ob- 

 longa vel oblongo-lanceolata, obtusa, vix apiculata, in petiolum 

 brevem, rigidum, 1 mm. longum, sulcatum contracta, erecta, 

 lamina coriacea, in sicco nervulosa. Scapi 6-9 mm. longi, e basi 

 pseudobulbi vel a rhizomate in medio inter pseudobulbos orti, 

 basi bractea 2 mm. longa, tubulata vaginati, uniflori vel biflori. 

 Flos 6 mm. longus, bractea infundibuliformi, oblique truncata, 

 2 mm. longa subtentus. Pedunculus cum ovario plus minusve 

 2 mm. longus, pergracilis. Sepala lateralia usque ad 6 mm. longa, 

 prope basim 2 mm. lata, triangula, acuta, apice subcarinata, 

 trinervia, textura membranacea, mentum 1.25 mm. longum 

 formantia. Sepalum dorsale 6 mm. longum, 1.5 mm. latum, ob- 

 longo-lanceolatum, apice subcaudatum, acutum, trinervium, 

 concavum. Petala quam sepala multo minora, vix 2 mm. longa, .6 

 mm. lata, oblonga vel oblongo-spathulata, apice rotundata, 

 uninervia, glabra. Labellum 2 mm. longum, 1.5 mm. latum 

 inter loborum lateralium apices extenditos, cum pede columnae 

 articulatum, mobile; lobi laterales semiorbiculares, membranacei, 

 in sicco pellucidi ; lobus medius vix 1 mm. longus, 1 mm. latus, 

 valde incrassatus, apice late rotundatus, margine leviter revolu- 

 tus, in sicco superficie corrugatus; discus inter lobos laterales 

 linea vel carina incrassata ornatus. Columna carnosa, ebrachiata. 



In habit very similar to B. alagense Ames, from which it is 



distinguished by its apiculate leaves, less caudate sepals and 



[85] 



