67 
In addition to these we have a plant in cultivation, disco- 
vered by Mr. Hartweg in Guatemala, the habit of which is 
exactly that of a Peristeria, but which has the lip not only 
articulated in the middle but also with the column, and has 
the caudicle and gland of Lycaste, from which it differs, inde- 
pendently of habit, in having two pollen-masses and not four. 
To this plant I propose to give the old classical name of 
Lacsena, which the incision between the upper and lower half 
of the lip renders applicable. 
The following will be the technical characters of the plants 
to which these observations apply. 
Peristeria. Hooker Bot. Mag. 3116. Perianthium globosum. Sepala 
basi connata concava. Petala conformia, paulo minora. Labellum cum 
columna continuum, epichilio carnoso incumbente indiviso cum hypo- 
cbilio sagittato leviter articulato. Columna erecta, semiteres, aptera, c. 
hypochilio continua. Antbera ecristata, bilocularis. Pollinia 2, postick 
fissa, in glandulam linearem sessilia.—— Herbae subterrestres, pseudo- 
bulbosae. Folia plicata. Scapi vaginati, radicales, multiflori. Flores 
speciosi. 
1. P. elata (Hooker in Bot. Mag. t. 3116); scapo erecto orgyali, racemo 
laxo elongato, epichilio rotundato serrulato medio elevato calloso, hypo- 
chilio maximo lobis obtusis disco unidentatis. columna longioribus. - 
Panama. Flowers white, with lilac specks on the base of the lip, 
very sweet-scented. Stem sometimes six feet high. 
2. Y.pendula (Hooker in Bot. Mag. t. 3479. P. maculata, Hort.) ; scapo 
brevi pendulo, racemo denso, epichilio rotundato integerrimo supra bi- 
lamellato, hypochilio elongato lobis rotundatis callo maximo lunato in 
medio, columna bicorni, rostello truncato. Demerara. — —Flowers 
pale purple, spotted with lilac, with a scarcely pleasant aromatic odour. . 
3. P. guttata (Knowles & Westcott, Floral Cabinet, t. 70 ); racemo brevi 
denso pendulo, epichilio rhombeo-oblongo serrulato leviter verrucoso, 
hypochilio brevi lobis acutis, columna mutica, rostello brevi.' Demerara. 
Flowers deeply Rpeckled with brownish purple, on a pale dingy 
ground, rather agreeably sweet-scented with an aromatic resinous odour. 
4. P. cerina (Lindl. in Bot. Reg. t. 1953.) ; scapo brevi pendulo, racemo 
denso, epichilio ovato emarginato crispo serrulato, hypochilii lobis bre- 
vibus acutiusculis, columna mutica, rostello truncato. Central America. 
-Flowers yellow, unspotted, with the smell of bruised juniper leaves, 
only more aromatic. 
100. ACINETA. 
Perianthium carnosum, patulum, sepalis basi connatis supremo subascendente. 
Petala conformia, paulo minora. Labellum cum columna continuum, 
carnosissimum, hypochilio oblongo concavo, epichilio haud articulato tri- 
partite ascendente, basi appendice carnosa aucto. Columna erecta 
utrinque in marginem latum rotundatum producta. Anthera ecristata, 
bilocularis. Pollinia 2, postice sulcata, caudicula lineari, glandula lu- 
nata. Herbee Peristerise habitu. 
if— 1843. 
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