riot ones slightly larger. Petals conformable, obo- 

 vate-obtuse, cuniate towards the base. Lip articu- 

 lated with the base of the column, 3-crested on the 

 disk, 3-lobed ; middle lobe oval inflexed at the point, 

 lateral ones sub-falcate, obtuse, with a broad sinus 

 between them and the middle one. Column some- 

 what oblique, clavate, concave and slightly winged 

 in front. Anther terminal, 2-celled ; pollinia 2, glo- 

 bose. Terrestrial caulescent herbs apparently of 

 large size : root- ? leaves long narrow channeled, 



than the lanceolate acute petals : lip 3-lobed, middle 

 one pubescent ?tnd revolute at the apex, lateral ones 

 acute ; lamellae linear, straight. 



lyamally Hills, near Coimbatore, flowering in 

 August and September. 



This species belongs to Lindley's section Eucym- 



bidium and approaches C aloifolium but is evidently 

 a very distinct species. Its erect rigid habit, thick 

 fleshy ligulate leaves, broad short scales at the foot of 

 the scape, at once proclaim it distinct. The colour 



folded, bowed towards the point : stems erect, round, of the flowers, is nearly the same in both, a blending 



terminating in a long loose many-flowered raceme : 

 bracts ovate, acute, deciduous: flowers large (about 

 3 inches across) long pedicelled: sepals and petals 

 glabrous, lip hairy within. The plant turns black 

 in drying and appears to attain a great size, a por- 

 tion of the stem of my specimen measuring upwards 

 of 2 inches in circumference. 



This genus is dedicated to Mrs. Colonel Walker, 

 under her maiden name Patton (the better known 

 one of Walker being pre-occupied), a compliment 

 well merited in return for the many contributions 

 from her accomplished pencil illustrative of the 

 Flora of Ceylon. I formerly so named a genus of 

 Anonacege, in my Illustrations, but further and more 

 intimate acquaintance with that plant has satisfied 

 me that the genus rests on imperfect observation 

 and is untenable. I therefore suppress it in favour 

 of the present, which I trust will be found more 

 permanent, as it is more suitable, being an orchid, 

 the family she has most delighted to study and 

 delineate. 



1750. Pattonia MACRAnTHA (R. W:). 

 Malacca. Griflfith. 



The specimens are unaccompanied with any note 

 or labeL I should suppose, from their appearance, 

 that it grows in humid or marshy soil, attains a height 

 of 4 or 5 feet, and that the racemes are nearly half 

 that length. The stems are glabrous, somewhat 4- 

 sided, slightly channeled on two sides, the leaves 

 are about a foot and half long, folded, tapering to a 

 point and, when growing, are probably sword-shaped. 



The colour of the flowers is unknown to me. 



1751-52. CrxHERis Griffithii (R. W.), scape 

 erect, hairy, many-flowered : leaves ..... bracts 

 ovato-lanceolate, acute, externally hairy : spur slen- 

 der annularly involute : lip spreading, 3-lobed ; late- 

 ral lobes obtuse smaller than the dilated obcordate 

 middle one, — Pseudo-bulb ovate ; scape from 1^ to 

 2 feet high, furnished towards the base with a few 

 sheathing scales : flowers large, pedicels slender 

 longer than the bracts. There are no leaves at- 

 tached to the specimen. They seem to come after 

 flowering. 



Mergui. Griffith, 



This is a very distinct species from C. cordifoUa^ 

 Lindley, which has a slender stem about a span high 

 small flowers and a short clavate obtuse spur. 



The detached magnified flowers seem at variance 

 with the attached ones appearing as if the lip was 

 anticous while in the others it is posticovs^ The error 

 rests with the artist and which, m the hurry of other 

 occupations, I overlooked. 



1753. Cymbidum erectum (R. W.), leaves ligu- 

 late, succulent, rigid, deeply and obliquely emargi- 

 nate : raceme erect, many-flowered : bracts small| 

 fleshy: sepals linear, somewhat obtuse; narrower 



of reddish and yellow deepening nearly to purple 

 along the middle line ; limb of the lip purplish red, 



yellowish near the base. 



1754. Ctrtopera Cullenii (R. W.), leaves ob- 

 long, lanceolate acute, plaited: scape slender, angu- 

 lar, somewhat drooping towards the apex; flowers 

 numerous, loosely racemed, long pediceUed, bracts 

 ovato-subulate ; sepals obovato-lanceolate, narrower 

 than the obovate very obtuse petals: lip 3-lobed, 

 middle one somewhat smaller, 3-crested. 



Travancore, flowering during the rains. 



I am indebted to General CuUen, Resident of Tra- 

 vancore, for my specimens of this gorgeous plant It 

 is nearly allied to C. Jlava^ with which 1 at first 

 confounded it. Like it the flowers are yellow and 

 the scape appears before the leaves, but the appear- 

 ance of the plant so far as I can learn from com- 

 parison with Dr. Royles figure is altogether diflferent. 

 On these grounds I have dedicated it to the dis- 

 coverer, a zealous investigator of the plants of that 

 tract of country but more especially of the econo- 

 mical applications of the useful ones. The plant 

 seems to be a large one some of the leaves being 

 nearly 2 feet in length. 



COTTONIA (R. W-). 



Gen. Char. Perianth spreading. Sepals broad 

 obovate, obtuse. Petals smaller, sub-lanceolato-cu- 

 niate at the base. Lip ecalcarate constricted in the 

 middle, sub-panduriform ; upper half larger sub-orbi- 

 cular, emarginate, cuspidate in the sinus ; lower 

 half orbicular bituberculate at the base. Column 

 erect, clavate, margins dilated, membranous in front. 

 Anther 2-celled, with a long blunt rostellum. Pol- 

 linia 2, unequally 2-lobed, posterior lobes smaller; 

 caudicle filiform ; gland orbicular. Capsule long, 

 clavate drooping. 



A caulescent epiphyte: leaves linear, distichous, 

 obliquely emarginate : racemes short, few-flowered, 

 compact on the apex of very long branched pedun- 

 cles: flowers pedicelled, flower buds globose. I 

 dedicate this genus to Major Fredrick Cotton of the 

 Madras Engineers, a most indefatigable collector 

 and successful cultivator of Orchideous plants, and 

 who has now a large, and for India, unique collec- 

 tion in his conservatory in Ootacamund. 



This genus seems to me to approach Saccolabium 

 by habit but differs from all the genera of that tribe 

 in the total absence of even an approach to a spur, 

 by the form of the column, and still more by the 

 unusual form of the lip. 



1755. COTTONU MACROSTAGHTS (R. W.). 



Malabar near Tellicherry, Jerdon, to whom I am 

 indebted for a coloured sketch of the plant and the 

 specimens from which the dissections were made. 



( 21 ) 



