ORCHIDS OF MADAGASCAR. 499 



GrYMNOCHILTTS. 



This genus consists of two species, both confined to the Mas- 

 carene Islands, one a native of Madagascar, the other of Mauritius 

 and Bourbon. They are low-creeping terrestrial plants, resem- 

 bling the genus Ooodyera, from which they are distinguished by 

 the narrow entire lip. Gr. recurvus, Blume, Orch. Archip. Ind. 

 p. 109, t. 32. fig. 2, was collected in Madagascar by Bruguieres ; 

 it is distinguished from the Mauritius and Bourbon plant 

 G. nudus, Blume, 1. c, Goodyera nuda, Thouars, by its oval 

 leaves, nodding raceme, and bracts longer than the ovary. 



MotfocHinrs. 

 The only species belonging to this genus known to me as a 

 native of Madagascar has more of the habit of a Gymnochilus 

 than of a Monochilus ; but the produced bifid lip, with a pair of 

 calli at the base, distinguish it from the former genus. The 

 remaining species are natives of the Indo-Malayan region, with 

 one or two African and one, M. Boryi, Beichb. til., a native of 

 Bourbon. 



M. oymnochiloides, n. sp. — Herba terrestris, rhizomate longe 

 repente, caule subpedali, parte suprema pubesceute ; f oliis remotis 

 ovatis lanceolatis, petiolatis glabris, petiola vaginaute, membra- 

 nacea ; raceino denso, bracteis lanceolatis acuminatis pubeacenti- 

 bus, ovario subsequantibus; floribus parvis, circiter viginti; sepalis 

 ovatis connatis ; petalis angustioribus obtusis subaequalibus ; 

 labello basi ventricoso, ad columnam et sepala adnato, carnosulo, 

 callis duobus cornutis obtusis decurvis ; lamina biloba rotundata 

 lata deflexa, marginibus crispulis ; columna brevi ; anthera erecta, 

 loculis distinctis, polliniis 2 pyriformibus sectilibus, apicibus 

 attenuatis ; rostello erecto bifido. 



Imerina, December 1880, Hildebrandt no. 3800 ! in Herb. Brit. 

 Mus. Central Madagascar, Baron n. 2842 ! in Herb. Brit. Mus. 

 A small terrestrial plant with the habit of Gymnochilus nudus, 

 Blume. The rhizome is long and creeping, and throws up a stem 

 less than afoot in height, which bears several rather distant ovate- 

 lanceolate leaves 2 inches long, including the petiole, and f to 1 inch 

 across. The lower part of the stem is glabrous ; but above the 

 highest leaf it is pubescent, and bears about four sheathing lanceo- 

 late bracts about | inch in length. The raceme is crowded and 

 slightly nodding, an inch in length, containing about twenty small 



