Tas. 6516. 
LACAINA spPEcTABILIS. 
Native of Mexico. — 
Nat. Ord. OrcH1pER.—Tribe VanDEz. 
Genus Laczna, Lindl. ; (Walp. Ann. vol. vi. p. 612.) 
Laczna bicolor ; pseudobulbis oblongo-ovoideis compressis levibus, foliis magnis 
petiolatis elliptico-lanceolatis plicatis nervosis, pedunculo basi pseudobulbi 
enato, racemo puberulo pendulo 8-10 floro, bracteis oblongis ovario brevioribus, 
perianthio galeato pallide roseov. albo puncticulis rubro-purpureis asperso, sepalis 
subsequalibus orbiculari-ovatis obtusis concavis, petalis brevioribus unguiculatis 
trulliformibus obtusis conniventibus, labello unguiculato basi articulato lobis — 
lateralibus rotundatis incurvis, terminali trulliformi unguiculato retuso purpureo 
dense punctulato, disco inter lobos laterales cornuto, columna superne ampliata, 
jolliniis 2 pyriformibus, stipite lineari superne dilatato, glandula parva. 
L. spectabilis, Reichb.f. in Bonpland. vol. ii. p. 92; Walp. Ann. vol. vi. p. 612. 
Nauenia spectabilis, K7otzsch in Otto et Dietr. Allg. Gartz. 1853, 193. 
A very little-known genus, of which only two species 
have been discovered, the present and L. bicolor, on which 
the genus was founded by Lindley (Bot. Reg. 1844, t. 50), 
and which is a native of Guatemala. The present is by 
very much the handsomer species of the two, and is re- 
markable for the delicate colouring of the perianth, which 
in L. bicolor is of a greenish-yellow hue, and not speckled 
in the lip. The two species differ widely, this having a 
much longer claw, a horn, concave in front, between the 
lateral lobes, and a stipitate mid-lobe; whilst that of L. 
bicolor has a very short claw, a beard between the lateral 
lobes, and an almost sessile mid-lobe. : 
Lindley, who named the genus, called it by one of the 
names of Helen (Lacena), because of its beauty; a com- 
pliment which the Botanical Register’s representative of 
L. bicolor does not at all merit; he adds, however, that it 
may also be derived from hakis, a cleft, in allusion to the 
divisions of the lip. : 
L. spectabilis flowered at Kew in the spring of this year; 
SEPTEMBER Ist, 1880. 
