. 



OBCHLDS OF MADAGASCAR. 450 



merassatis, callo bicornuto parvo ad basin ; columua quam la- 

 bellum breviore crassa, parum curva, basi et apice inerassata, 

 alis parvis ; anthera ovata obtusiuscula. 



Imerina, in paludibus, Kildebrandt 3849 ! in Serb. Brit. Mus. 



A rather small-flowered species with narrow erect leaves, a 

 stem 7 to 8 inches in height, and a rather compact spike of about 

 twelve flowers with stout pedicels. The column is rather stout 

 and but little curved except at the upper part. The lip is obovate- 

 cuneate, and emarginate, with a depression in the middle of its 

 length, the edges at the base turning up flank the column ; there 

 is a small two-horned callus close under the lower part of the 

 column. 



Lipaius longipetala, n. sp. — Terrestris, pseudobulbis ovatis 

 parvis crassis ; vaginis membranaceis albis tectis, foliis duobus 

 lanceolatis acufcis ; caule semipedali folia superante ; braeteis 7-10 

 remot is, inferioribus lanceolatis acutis brevibus, superioribus ovatis 

 acutis vix dimidium ovarii asquantibus ; floribus remotis, pedicellis 

 tenuibus ; sepalo postico late lineari subacuto, lateralibus semiova- 

 libus falcatis ; petalis anguste linearibus longis, apice parum dila- 

 tatis, labello quam sepala multo breviore, oblongo, brevissime 

 mucronato, basi angustato, callo parvo obtuso ; columna brevi, 

 basi angusta recta, parte summa curva, ab!s brevibus latiusculis 

 acutis. 



In sylvis Ankafana, S. Betsileo, Hildebrandt, March 1881, 

 no. 3980 ! in Kerb. Brit. Mus. 



A smaller plant than the two precediug, with fleshy ovate 

 pseudobulbs and lanceolate leaves gradually tapering to the base, 

 2|-4 inches in length, | an inch broad in the broadest part. 

 The stems are 5 inches in length, with from 7 to 10 scattered 

 bracts. The flowers are smaller than those of the preceding, and 

 6 or 7 in number, with pedicels 4 lines in length. The lateral 

 sepals are almost semicircular, 2 lines in length, the two together 

 forming a circle; the narrow petals are just twice as long. The 

 lip is much shorter than the lateral sepals, oblong, with a very 

 short blunt process in the centre of the broad apex ; the base is 

 much and suddenly narrowed, and in the middle line just below 

 the apex of the anther is a short obtuse callus, apparently of an 

 orange colour. The column is rather short and but little curved ; 

 tho lateral wings extend but a short way along the column, but 

 are rather broad and pointed, coming to a point in the middle. 



