710 CXXV. OECHIDACE^. 



long, slender ; sheaths few, loose, acuminate ; bracts i-^ in. long, 

 ovate, acuminate. Sepals ^ in. long, united half-way up into a ventri- 

 cose tube, the lobes ovate-oblong. Petals linear-oblong, falcate, obtuse, 

 the tips exserted. Lip ^ in. long, with a short saccate claw and a broad 

 spreading suborbicular 2-lobed limb, the lobes sub-5-fid ; sac cymbiform, 

 with 2 enclosed calli. Column short ; appendages and rostellar arms 

 long, subspatbulate; anther with a dilated membranous tip; pollinia 2, 

 pyriform, subsessile on the elongate gland. F\. B. I. v. 6, p. 105 ; Dalz. 

 & Gibs. p. 271 ; Trim. Tl. Ceyl. v. 4, p. 211 ; Woodr. in Journ, Bomb. 

 Nat. V. 12 (1899) p. 519. Monochilus fahellatum, Wight, Icon. t. 1727. 

 — riowers; Mar. 



S. M. Country : Chorla Gliat, Dalzcll tj- Gibson. Kanaka: Kumpta-Sirsi road, 

 Woodroiv. — DisTRiB. India (Bliotan Himalaya, Tenasserim, W. Peninsula); Ceylon. 



29. PERISTYLUS, Blume. 

 Terrestrial herbs. Sepals and petals free, subequal, connivent or 

 subconnivent. Lip continuous with the column, free or slightly adnate 

 to it, produced at the base into a short (sometimes very short) spur, 

 erect or somewhat spreading, entire or 3-lobed. Column short, footless ; 

 clinandrium erect, short. Anther-cells parallel ; apex inferior, short 

 and adnate to the base of the column ; pollinia granular with short 

 caudicles and exserted naked glands ; staminodes lateral, auriculate. 

 Stigma sessile. Eostellum subulate or tooth-like, situated between the 

 anther-cells. Capsule ellipsoid or oblong. — Distrib. Throughout the 

 N. temperate regions and in the tropics of Asia and Africa, chiefly in 

 the mountains ; species 40 or 50. 



Spur as long as or longer than the sepals, subcL'ivate 1. P. Stocksii. 



Spur shorter than the sepals, globose or ellipsoid. 



Stem leafy, the leaves scattered or subimbricate 2. P. spiralis. 



Leaves clustered about tlie middle of the stem. 



Lip shorter than the sepals ; petals white 3. P. plantagineiis. 



Lip as long as the sepals ; petals yellow or yellowish- 

 green. 



Lateral sepals mueronate at the back below the apex ; 



spikes dense, 4-12 in. long 4. P. goodycroides. 



var. affinis. 

 Lateral sepals not mueronate at the back below 



the apt-x ; spikes lax, 2-3 in. long 5. P. Lawii. 



1. Peristylus Stocksii, Krcmizlin, Orchid. Gen. ei Sp. v. 1 (1898) 

 p. 513. Whole plant 6-18 in. high ; stem slender, with numerous 

 sheaths in the lower part. Leaves more or less clustered towards the 

 middle of the stem, variable, 3-4 by |-1 1 in., obovate or elliptic, or lanceo- 

 late, obtuse, acute or acuminate, usually petiolate. Flowers yellowish, 

 in twisted spikes 3-6 in. long ; peduncles with a few scales between the 

 leaves and the spike ; bracts 4-|- in. long, ovate, acuminate, the lower 

 bracts longer than the upper, sometimes shorter than the curved ovary. 

 Sepals 1-nerved ; lateral sepals Jq by 1}-^^ in. long, oblong, obtuse ; 

 dorsal sepal -^^ by jV in., elhptic-oblong, obtuse. Petals y^^ in. long, 

 obliquely ovate, obtuse, subfleshy. Lip i in. long, 3-lobed at the apex, 

 the lobes shorter than the sepals ; claw broad, concave ; lateral lobes a 

 little shorter and narrower than the midlobe, slightly incurved ; midlobe 

 Vf>~i^ by -gJ|j in., oblong, obtuse ; spur -^-1- in. long, inflated downwards, 

 shorter than the orary. Pollinia clavate. Stigmatic lobes clavate. 



