POLYSTACHYA 49 



Ovary cylindrical, 4-5 mm. 1. Sepals 3-nerved, apiculate ; median tri- 

 angular-ovate, 3 mm. 1., 2 mm. br. ; lateral deltoid, very oblique, 3*5 mm. 

 1., 4 mm. br. ; cbin obtuse. Petals linear-subspatbulate, subobtuse, apicu- 

 late, 3 mm. 1. Li}), apex of lateral lobes extending to or beyond middle 

 of median lobe ; median larger, roundisb-elliptical, margin curled, apex 

 rounded, emarginate, apiculate ; disk with very short glandular hairs, and 

 a callus extending along the median nerve from the base to the middle ; 

 4 mm. 1., 3*3 mm. br. Column, inch anther, 1 mm. 1. Capsule 1 cm. 1. 



2. P. minop Fawc. & Bendle in Joum. Bot. xlviii. 106 (1910); 

 lateral lobes of lip small, rounded ; sinus not above middle of 

 lip ; callus basal, projecting, conical. P. foliosa Griseb. loc. cit. 

 (as regards spec, from Jamaica) non Beichb. f. (PI. 7, f. 6, 7.) 



On trees and walls ; in fl. and fr. Sept. -Jan. ; road to Guanaboa and 

 Red Hills, Sloane Herb. vii. 86 ! Fairfield,, Wullschlaegel, 1055 (partly) ! 

 J. P. 523, Morris ! near Browns Town, Miss T. M. Barrett ! Claremont, 

 1700 ft., Fawcett & Harris I Lancaster, 2200 ft., 2500 ft., 3000 ft.; Belve- 

 dere, Hanover, 500 ft. ; Harris ! Ramble, Hanover ; below Guava Ridge ; 

 Fawcett ! Fl. Jam. 7568, 7777, 7805, 10,434, 10,457. B. Guiana. 



Plant 5-12 in. high. Pseudobulb '5-2 cm. 1. Leaves obliquely 

 emarginate, 7-20 cm. 1., 11-25 mm. br. Panicle 1 to nearly 3 dm. 1., 

 generally shorter than the leaves. Bracts triangular, shortly acuminate, 

 1'5 mm. 1. Flowers yellowish-white, perianth in. 1. Sepals 3-nerved, 

 apiculate; median oblong-elliptical, 2'5-2*7 mm. 1., 1-5 mm. br. ; lateral 

 triangular-ovate, slightly oblique, 3 mm. 1., 2 mm. br. ; chin rounded. 

 Petals linear-subspathulate, acute, 2 - 5 mm. 1. Lip, apex of lateral lobes 

 scarcely extending beyond sinus ; median much larger, roundish-elliptical, 

 obscurely apiculate, margin curled ; disk with very short, mealy hairs, 

 about 3 mm. 1. ; median lobe 2 mm. br. Column, incl. anther, about 

 1 cm. 1. Capsule 6-8 mm. 1. 



Differs from P. foliosa Reichb. f. in being a larger plant, with larger 

 flowers, also in other details, especially in petals and lip ; the conical 

 projecting callus at the base of the lip is characteristic. 



20. CRYPT0PH0RANTHUS Barb. Rodr. 



Epiphytic herbs, with creeping rhizome without pseudobulbs. 

 Stems with one leaf, short, with scarious sheaths. Leaf leathery 

 or fleshy, more or less erect. Flow T ers rather small, shortly 

 stalked, solitary, or sometimes a few clustered, at the base of the 

 leaf. Sepals connate altogether, except for an open chink on 

 each side between the median and the lateral sepals. Petals 

 much smaller than the sepals. Lip free, a little longer than the 

 petals, parallel with the column, very shortly clawed, jointed to 

 the foot of the column, 3-lobed. Column erect, produced at 

 the base into a rather long foot. Anther terminal, opercular, 

 incumbent, hooded, 1 -celled ; pollinia 2, waxy, narrowly obovoid, 

 compressed. Capsule broadly ellipsoidal. 



Species 9, natives of W. Indies and tropical America. 



C. atropurpureus Bolfe in Gard. Chron. ii. 693 (1887). 

 Specklinia atropurpurea Lindl. in Bot. Beg. under t. 1797 (1835). 

 Pleurothallis atropurpurea Lindl. in Bot. Beg. xxviii. Misc. 81 



E 



