520 MB. H. N. BIDLEY ON THE 



Mm. ; Ambatomainty, 1 Dec. 1877, Antananarivo, 1884, Ruten- 

 berg. 



This species is undoubtedly near 8. rosfratum, of which it has 

 quite the habit ; but the bisaccate blunt spur much shorter than 

 the ovary, and the deflexed petals and sepals quite distinctly 

 separate it. The stem is from 15 to 18 inches tall, and the 

 radical leaves are as much as 6 inches long. 



Satteitjm eosteatitm, Lindley, Gen. 4' $P- Orch. PI. p. 338. 



Madagascar : Ankafana, Deans Coivan ! Rasamoala, " perfumed, 

 grows on grassy plains, Feb. 1880," in Herb. Brit. Mus. ; no. loc, 

 Lyall, Herb. Kew. 



This plant grows to nearly a foot and a half high ; it has about 

 two flaccid, green, lanceolate, blunt, 7-nerved, radical leaves, and 

 a number of narrower erect, clasping stem-leaves. The radical 

 leaves are 5 inches long and 1 across. The flower-spike is rather 

 compact, more lax than trinerve, an elongate cone in shape. The 

 bracts are at first erect, after flowering deflexed ; they are lan- 

 ceolate-acuminate, \ an inch long. The flowers are small and 

 white. The ovary being untwisted, the lip is, as usual in the 

 genus, uppermost. The two spurs are slender, filiform, and 

 curved, \ an inch long. The column is almost straight, long, and 

 slender. The pollinia oval, with rather a long caudicle and 

 circular gland. The various segments of the perianth are con- 

 nate into a short but distinct tube. 



S. Geacile, Lindley, Gen. Sf Sp. Orch. PL p. 33S. 



Madagascar, Lyall ! 3] 4, 315 ; Baron ! Herb. Kew. ; Ankafana, 

 Imerina, Deans Cowan ! 



This plant is very nearly allied to S. rostratum, Lindl., but differs 

 in its broader radical leaves, few, shortly sheathing, very remote 

 stem-leaves, only 1 inch in length, its much more lax spike and 

 longer spurs, 8 lines in length. The stem is from 1 foot to 1| 

 in height. The bracts, which are at first erect but reflexed after 

 flowering as in the other species, are | an inch long. 



S. calceatum, n. sp.— S. foliis lanceolatis acuminatis ensiformi- 

 bus strictis, vaginantibus pluribus ; caule erecto validulo ; racetno 

 laxo plurifloro ; bracteis semper erectia, floribus subsequantibus, 

 ovatis lanceolatis acuminatis ; sepalis lateralibus oblongis ob- 

 tusissimis carnosis, margiuibus valde inflexis, apice cariuatis, 

 postico quam laterale paullo breviore, clavato gracili; petalis 

 quam sepala brevioribus ovatis obtusis ; labello oblongo obtusis- 



