ORCHIDACE^E 



There is no dividing wall in the sac, and there are no calli or 

 protuberances. At the base of the middle lobe there is a thicken- 

 ing of the tissues which is difficult to understand in dried mate- 

 rial. Undoubtedly in generic characters closely related to species 

 of Sarcanthus. 



Leyte, Dagami, C. A. Wenzel 055, December 29, 1912. On trees at 

 medium height. Altitude 60 meters. Flower white, yellow, and purple. 

 Mindanao. 



The following belong with 31. constricta: 



Polillo, R. C. McGregor Bur. Sci. 10447, November 11, 1909. Leyte, 

 C. A. Wenzel 062, December 31, 1912. 



2. Malleota Lyonii sp. nov. AfF. 31. constricta. Planta ± 4 dm. 

 alta. Caules flexuosi, ± 3 mm. in diametro. Radices ad basimcaulis 

 vaginae perforantes. Folia valde coriacea, oblongi-elliptica, inse- 

 qualiter bilobata, disticha, 2.5-4 cm. longa, usque ad 1.4 cm. lata, 

 patentia; vaginae foliorum internodiis aequilongis, circiter 1 cm. 

 longae, ad nodos caulis dilatatse, rigidae, in sicco valde rugosae. 

 Pedunculi vaginas foliorum perforantes, elongati, circiter 1 dm. 

 longi, ad basim bracteis tubularibus instructi. Racemus laxiflo- 

 rus, ± 4 cm. longus, floribus ± 4 mm. distantibus. Bractea? flores 

 subtendentes 3 mm. longee, acuta?, quam pedicellus cum ovario 

 breviores. Pedicellus cum ovario circiter 5 mm. longus, rigidus.Se- 

 pala lateralia concaviuscula inaequaliter spathulata, obtusa, car- 

 nosa, circiter 4.5 mm. longa, 2.5 mm. lata. Sepalum dorsale erec- 

 tum, cucullatum, prope apicem subito pronum, obtusum, 4 mm. 

 altum, 6 mm. longum,ad basim attenuatum. Petalaoblongi-ovata, 

 circiter 3 mm. longa, vix 2 mm. lata. Labellum trilobatum, lobi 

 laterales prope columnam, triangulares, subacuti, erecti; lobus 

 medius minutus, incurvatus, triangulus, ± 1 mm. longus, utro- 

 que ad basim lobulus minutus. Saccus 5 mm. longus, infra lobum 

 medium protumidus, prope basim subito constrictus, obtusus, 



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