ORCHIDACEiE 



intus in pariete postico costa. Gynostemium 1.5 mm. longum, 

 superne subito dilatatum. 



Among Philippine species this is nearest Malleola constricta. 

 In habit it resembles 31. JVitteana J. J. Smith & Schltr., with 

 which species it is closely allied. 

 Luzon? W. S. Lyon s. n. 



3. Malleola Merrillii sp.nov.Csiu\es±1.5 dm. alta, foliosa. Folia 

 breviter ligulata, valde coriacea, ad apicem inaequaliter biloba, 

 lobis obtusis, ± 6 cm. longa, ± 3 cm. lata, imbricata, vaginis per- 

 sistentibus caulem obtegentibus. Vaginse foliorum arete adpressae 

 internodiis longiores, circiter 1.5 cm. longa?, rigida?, ancipitas, com- 

 planatas, in sicco rugosse. Pedunculi oppositifolii, circiter 12 cm. 

 longi, bracteis infra racemum vaginatis. Bracteas racemi lanceo- 

 latse, valde acutaf, ± 5 mm. longse, leviter deflexge. Flores pur- 

 purei et flavidi in racemo denso dispositi. Racemus circiter 5 cm. 

 longus, circiter 2 cm. in diametro. Pedicellus cum ovario circiter 

 7 mm. longus quam saccus labelli longior. Sepala lateralia vix 

 5 mm. longa, circiter 4 mm. lata, suborbicularia. Sepalum dorsale 

 simile, valde concavum. Petala orbicularia, 4 mm. longa, 3.5 mm. 

 lata, uninervia. Labellum calcaratum, leviter trilobatum ; lobi lat- 

 erales minuti, rotundati ; lobus medius erectus, leviter incurvus, 

 ad apicem triangulus, circiter 1 mm. longus, extus leviter cari- 

 natus. Calcar cylindraceum, obtusum, usque ad 7 mm. longum, 

 sa?pe inflatum, ad aperturam constrictum. Gynostemium generis. 



I have examined several collections from Luzon which appear 

 to be referable to this species, but which are much taller, with 

 longer leaves and freer habit, than the type. It is not unlikely 

 that the plants found by Merrill on rocks in the open show a 

 more compact form of growth than plants which grow in the 

 forest on trees. The spur of the lip is without callosities, septa, or 



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