19 
PL. DXXXVI. 
ACANTHEPHIPPIUM MANTINIANUM . ump. et coen. 
M. GEORGE MANTIN’S ACANTHEPHIPPIUM. 
ETYMOLOGY : From ézev6«, aiguillon, and égiamuor, selle. 
ACANTHEPHIPPIUM. Sepala lata, carnosa, in urceolum latum oblique ventricosum cohaerentia, posticum 
fornicatum, lateralia basi pedi columnae adnata, mentum breve (v. conicum in A. striato), fere calcariforme for- 
mantia. Petala sepalis inclusa, ad latera columnae affixa, sepalis multo angustiora, basi cum marginibus membranaceis 
pedis columnae continua. Labellum ad apicem pedis columnae articulatum, inflexum, sepalis inclusum; lobi laterales 
lati, erecti; medius recurvus, indivisus. Columna brevis, crassa, superne anguste bialata, basi in pedem longissimum 
medium incurvo-inflexum producta ; clinandrium breve, membranaceum. Anthera intra marginem clinandrii affixa, 
opercularis, incumbens, convexa, bilocularis, loculis imperfecte locellatis; pollinia 8, in quoque loculo 4, cerea supe- 
riora obovoidea, inferiora longiora, omnia erecta, sursum appendicula granulosa connexa; glandula nulla a rostello 
solvenda. Capsula magna, oblongo-clavata, erostris, costis 6 prominentibus. — Herbae terrestres, pseudobulbis oblongis 
paucifoliatis. Folia ampla, plicato-venosa, in petiolum contracta. Scapi foliis breviores, aphylli, vaginis paucis latius- 
culis. Flores majusculi, in racemo pauci, pedicellis brevibus post anthesin accretis. Bracteae membranaceae, saepe 
coloratae, majusculae. 
Sp. circa 7, Indiae orientalis et Archipelagi Malayani incolae. 
Acanthephippium BLuME, Bijdr., 353, pl. 47; Orch. Archip. Ind., 156, pl. 49. — RcuB. F. in Walp, Ann., 
VI, 460; Bot. Reg., t. 1730 et 1846, t. 47; Bot. Mag., t. 4492. — GrirF. Ic. Pl. As., t. 325. — Maunp., Botanist, 
t. 200. 
Acanthephippi: Mantini. Aff. A. bicolori LpL., a quo tamen differt robustiore habitu, inter caetera 
pseudobulbis duplo longioribus ; florum colore satis dissimili; sepalis lateralibus multo magis gibbosis ad mediam 
partem quam in aliis speciebus generis; petalis paulo brevioribus, latissime unguiculatis, demum obtuse ovato-rhomboideis, 
apice rotundatis; labelli disco incrassato 5-costato, costis mediis super lobum terminalem laevem paulo productis; 
floribus patentissimis ; bracteis 3 cm. nisi magis longis, ventricosissimis, viridibus, purpureo brunneo valde suffusis; 
sepalis utrinque nitidis, flavis pallide viridi suffusis, ad basin purpureo maculatis, superne intense purpureis, pallide 
luteo 7-striatis. Sepalis similibus, tantum ad basim candidioribus. Labello nitido cereo, externe purpureo punctulato, 
disco aurantiaco luteo, costis purpureo punctulatis vel lineatis. Columna alba, ad basim purpureo punctulata. 
Acanthephippium Mantini L. Linn. et Coan. in Fournal des Orch., VI, p. 138, et supra, 
he Acanthephippium genus, founded by Biume in 1825, is composed 
of six or seven species, natives of the East Indies and the Malayan 
Archipelago. These plants, closely allied to the Chysis from a botanical 
point of view, are however very different with regard to the flowering, and 
this difference is very marked in horticulture, the former being far less popular 
than the latter. 
Several Acanthephippium, however, are represented in the large collections, 
such as A. javanicum, which is of a beautiful golden-yellow spotted with red, 
and flushed with blood-red; A. bicolor, allied to the plant we now figure ; the 
coloration is analogous to that of A. javanicum; A. leontoglossum, introduced by 
us a few years ago, the flowers of which are cream-yellow tinged with purple- 
red, the throat of the lip lemon-yellow; lastly A. striatum, more uncommon, 
altough it has been known for a great length of time; the flowers are white 
Le 
