518 MB. H. K. BIDLEY ON THE 



Amphoechis calcarata, Thouars, Orch. lies Afria. t. 4; 

 Blume, Mus. Lugd. Bat. ii. p. 190 ; S. Moore in Flor. Maur. Sf 

 Seych. p. 338. 



Subpedalis ; folio radicali ovato petiolato vel lanceolato-acuto ; 

 caulinis 4 lanceolatis acuminatis; scapo gracili ; floribus pluribus 

 parvis aggregatis reversis ; bracteia lanceolatis acuminatis ; 

 pedicellis ovariis gequantibus ; sepalis ovatis obtusis, laterali- 

 bus quam posticum et petala longioribus ; petalis oblongis lan- 

 ceolatis obtusis, quam sepala angustioribus ; labello late obcu- 

 neato crenulato trilobo, lobis lateralibus saepe vix distiuctis ; 

 calcare filiformi, ovarii dimidio sequante, apice obtuso, rarius 

 dilatato uncato ; apicibus antherse brevibus obtusis ; polliniis 

 pyriformibus ; ovario bispido. 



Madagascar : Imerina, Beans Cowan ! Andrangoloaka, Barker ! 

 Herb. ICew. Bourbon, Thouars ! Mauritius, Captain Carmichael\ 

 Gen. HardwicJce in Herb. Brit. Mus. 



This plant appears to vary in several respects. The leaf in 

 the Madagascar specimen is ovate and petiolate, while in a spe- 

 cimen from Mauritius it is lanceolate, with a lamina 1| iuch long 

 by | an inch. The lip, too, varies in shape, sometimes distinctly 

 narrowed at base, sometimes hardly so ; often the lateral lobes 

 are hardly to be traced ; some specimens have a distinct but small 

 cusp at the apex. The spur is either snort, cylindrical, and 

 blunt, or slender, with the apex slightly dilated and hooked. 

 The rhachis of the spike is usually very pubescent. The stem 

 varies from 7 inches to 1 foot in height. 



A. lilacina, n. sp. ; foliis radiealibus ovatis petiolatis cuspi- 

 datis, caulinis acuminatis ; scapo gracili subpedali ; racemo laxi- 

 usculo; rhachide hispida; floribus circiter 12 parvis reversis lila- 

 cinis, minute pubescentibus ; bracteis lanceolatis longe acuminatis, 

 dimidio ovarii sequantibus ; sepalo postico ovato obtuso, latera- 

 libus latioribus patentibus ; petalis lanceolatis acutiuBCulis; 

 labello obcuneato emarginato crenulato, purpureo-maculato ; lobis 

 lateralibus brevissimis obtusis erectis ; calcare recto filiformi 

 attenuato, apice uncato, dimidio ovarii axpiante; anther* api- 

 cibus brevibus crassiusculis ; rostello subsimili subfcquali ; pro- 

 cessubus stigmaticis brevibus clavatis, supra apices antlierse 

 laciniis triangularibus parvis extus munitis ; glandula elongata 

 lanceolata acuminata ; polliniis nigris ; ovario hispido. 



East Imerina, Ankerimadinkain sylvis primsevis, flores lilacini, 

 Oct. 1880, Hildebrandt no. 3730 ! in Herb. Brit. Mus. 



