ORCHIDACEJE 



Elmer's 9244 from Taybas Province, Luzon, which is repre- 

 sented in my herbarium by a specimen in fruit, is a duplicate of 

 material referred tentatively by Dr. R. Schlechter to S. striolatus 

 Reichb. f. This specimen appears to belong to S. micrantkus. 



Leyte, Jaro, C. A. Wenzel 0181, September 19, 1913. Epiphyte in for- 

 est, 60 meters above sea level. Flower green and white. Basilan, Luzon, 

 Mindanao. 



4. SaiTanthus pachyphyllus sp. nov. Herba valida, 5 dm. alta. 

 Caules 3 cm. in diametro. Folia rigida, carnosa, falcata, ad apicem 

 insequaliter bilobata, lobis obtusis, ± 4 dm. longa, circiter 4 mm. 

 lata (in sicco conduplicata), valde rugosa, disticha. Flores inodori, 

 sordido-albidi,inmaturitateflavidi. Inflorescentiapaniculata,mul- 

 tiflora, floribus confertis, circiter 4 dm. alta. Pedunculus rigidus 

 4 mm. in diametro, bracteatus, bracteis cupuliformibus, 3 mm. 

 longis, vaginatis. Bracteae inflorescentiae squamiformes, triangu- 

 lares, acuta?, circiter 1 mm. longse. Pedicellus cum ovario circiter 

 4 mm. longus. Sepala lateralia incequaliter elliptica extus leviter 

 carinata, 4 mm. longa, 3 mm. lata, carnosa, subacuta. Sepalum 

 dorsale concavum, ellipticum, obtusum. Petala oblongi-elliptica, 

 obtusa, 4 mm. longa, vix 2 mm. lata, carnosa. Labellum triloba- 

 tum, lobi laterales triangulares, acuti; lobus medius rotundato- 

 sagittatus, 2 mm. longus, 3.5 mm. latus, verrucosus, ad basim 

 utrinque callo tuberculato, pubescente, ornatus. Saccus 3 mm. 

 longus, obtusus, in pariete postico lamella subquadrata, carnosa, 

 1.75 mm. longa, circiter 1 mm. alta, ad apicem truncata, minute 

 pubescens. Gynostemium carnosum, 1.5 mm. longum. 



The laterally flattened callus on the posterior wall of the sac 

 of the labellum is situated just below the column and reaches 

 across the opening of the sac nearly to the base of the mid-lobe. 

 The calli on the anterior wall are decurrent on the lateral lobes, 

 and appear to be connected by a thickening of the tissues at the 



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