Tas. 8020. 
LYCASTE Locusta. 
ee 
Peru. 
ORCHIDACEZ.—Tribe VANDE&. 
Lycastg, Lindl.; Benth. et Hook. f. Gen. Plant. vol. iii. p. 547; Pfitzer in 
Engl. & Prantl Pflanzenf. vol. ii. 6, p. 162. 
Lycaste Locusta, Reichb. f. in Gard. Chron. 1879, vol. i. 524; Rolfe in Orch. Rev. 
1898, p. 136 ; aff. L. costate, Lindl., scapis longioribus, floribus omnino viri- 
dibus, sepalis petalisque angustioribus, et labelli apice fimbriato distincta. 
Herba epiphytica, circa 2 ped. alta. Pseudobulbi cxespitosi, ovoideo-oblongi, 
subcompressi, 24-4 ped. alti, monophylli, vaginis membranaceis vestiti. 
Folia elongato-lanceolata, acuminata, longe petiolata, plicata, circa 12 
ped. longa, 13 poll. lata, viridia. Scapi circa 10-poll. alta, vaginis 
oblongo-lanceolatis acuminatis 15-18 lin. longis vestiti. Bractee 
oblongo-lanceolatz, acuminate, 1} poll. longe. Pedicelli circa 1 poll. 
longi. lores speciosi, virides, labello albo-marginato. Sepala circa 
2 poll. longa; sepalum posticum lanceolato-ellipticum, snbacutum vel 
apiculatum, concavum, circa 9 lin. latum; sepala lateralia triangulari- 
lanceolata, basi fere 1 poll. lata. -Petala oblonga, subobtusa, 1} poll. 
longa, 5 lin. lata. Labellum trilobum, circa 2 poll. longum ; lobus inter- 
medius elliptico-oblongus, obtusus, valide fimbriatus, fere 1 poll. latus; 
lobi laterales triangulares, acuti, subfalcati, 3 poll. longi, margine integro; 
crista obcordato-oblonga, margine elevata et crenulata, medio concava, 
carinis ad basin extensis. Oo/umna clavata, arcuata, circa 1 poll. longa, 
apice anguste alata, basi in pedem curvatum extensa, cum sepalis 
lateralibus mentum latum obtusum formans; pollinarii glandula utringue 
appendicula furcata ornata. 
The species of Lycaste having a fimbriate lip form a 
particularly difficult group, and have never been properly 
defined. A few of them, however, are very well known, 
and among these may be mentioned four which have 
been figured in the Botanical Magazine. ‘The earliest is 
L. fulvescens, Hook, (t. 4198), having rather narrow, buff- 
yellow segments. LL. gigantea, Lindl. (t. 5616) has larger 
greenish sepals and petals, and a brick-red lip margined 
with deep yellow. J. costata, Lindl., is figured under the 
name of L. Barringtonix var. grandiflora, Hook. f. (t. 5706), 
and has ivory-white flowers; while LD. linguella, Reichb. f. 
(t. 6303) has rather greener flowers, and a less fimbriate 
lip than the preceding. The present one is remarkable 
for its dull green flowers, with a white fringe, which 
extends all round the front of the lip. It was originally 
described over twenty-five years ago, from a plant col- 
lected in Peru by Mr. Davis, in the service of Messrs. 
JUNE lst, 1905. 
