rpseaP^ OrchidecB. 171 



stout, thickened above; anth. 2-celled, pollinia 8, ovoid, waxy, 



seated in fours on a small viscus. — Sp. 7 ; 6 in Fl. B. Ind. 



A. zeylanicum, Hook. f. Fl. B. hid. v. 825 (1890). 

 Appendicula longifolia^ Bl. ex. Thw. Enum. 306. Trim. Cat. Ceyl 

 90. C. P. 3208. 



Fl. B. Ind. V. 825. 



Stem 8-12 in. long, strongly compressed, with the sheaths 

 J in. broad, sheathed throughout with long, distichous, equi- 

 tant, laterally compressed, white, coriaceous, truncate sheaths ; 

 roots tortuous; 1. 3-5 by \-\ in., exactly linear, obtuse or 

 retuse, apiculate, thinly coriaceous, smooth, striate, midrib 

 slender; heads of fl, sessile, i in. diam., bracts slender, 

 scarious, shorter than the fl.; ov. after flg. fusiform, ^ in. long, 

 perianth (in drawing) | in. long, erect, white. 



Low country, iii the moist region ; very rare. Road to Adam's Peak, 

 abundant (McKenzie). Ambagamuwa Dist. (Thwaites). Fl. Feb.; white. 



Endemic (.?). 



In the absence of flowering specimens it is impossible to determine 

 whether or no this plant may not be referable to an Indian species, h 

 closely resembles in habit and foliage A. callosuni, Rchb. f. of India, 

 figured in Ann. Bot. Card. Calcutt. viii. t. 213, which has much larger fl. 

 According to a drawing in Herb. Peraden. the fl. of A. zeylaniaim are 

 very minute. 



17. IPSE A, Lindl. 

 Pseudobulbous, terrestrial, erect herbs;!, 1-2, long, narrow, 

 plicate; scape tall, erect, slender, sheathed, few-fld,; fl, large, 

 bracts spathaceous; sep. subequal, spreading, lateral ovate- 

 oblong, adnate to the base of the column; pet. narrower than 

 the sep. ; lip sessile on the base of the column, erect, side 

 lobes oblong, erect, mid lobe small, obovate, disk crested, base 

 saccate; column slender, clavate above, foot o; anth. 4-celled, 

 pollinia 8, pyriform, waxy, in 2 groups of 4 each, united by a 

 viscus, one pair of each group much smaller. — Sp. 3 or 4; 3 in 

 Fl. B. Ind. 



Z. speclosa, Lindl. Gen. and Sp. Orch. 124 (1831). 

 Thw. Enum. 301. Pachystoma spcciosa, Rchb. f. Trim. Syst. Cat. 

 Ceyl. 88. C. P. 2364. 



Fl. B. Ind. V. 812. Wight, Ic. t. 1663. Bot, Mag. t. 5701. 



Whole plant puberulous; pseudobulbs |-i in. diam,, 

 clustered, depressed-globose or broadly ovoid, hard, brown; 

 1. 6-10 by ^-j in,, narrowly linear, acuminate, narrowed into 

 a slender petiole, 3-veined; ped, 6-18 in, long, slender, with a 

 few pale oblong-lanceolate acute loose white sheaths open to 

 the base; bracts as long as the ov., and, like the sheaths 

 herbaceous; fl. 2-3 in. diam., pedicels decurved, with the ov. 



