ЗСІТАМІМЕ Ж. 
General Remarks. 
Among those Scitamineous plants that would (if verbal 
characters were merely looked at,) be included in Alpinia, 
I find three modifications of form. 
The first, in which the flowers terminate the leaf- bearing 
Stem, and which have a peculiar habit, the lip of the flowers 
being scarcely at all lengthened out. These I imagine will still 
be called Alpinia, and will include A. allughas, galanga, nu- 
tans, capitellata etc. etc. ' 
The second, and third have the flowers on radical 
bighly bracteate scapes, the flowers are in every respect 
elongated, and have thelike affinity with ordinary forms of 
genuine Alpinia. 
The second of these groups, remarkable for its generally 
extended laballum, and its unilabiate flowers, the lacinie of 
the outer series being short and incumbent to the fila- 
ment or the tube formed by its union with the label- 
lum, I propose calling Acasa, in allusion to its having no 
rictus between the anterior and posterior series of the peri- 
ant 
The third in contradistinction I call STENOCHASMA, the 
segments of the outer perianth being prolonged into a pos- 
terior lip. The labellum too, while its lateral lobes appro- 
ximate to those of Achasma, has its central lobe of the same 
length with the stamen, and is concave. 
To Achasma will belong A. macrocheilos, A. megalocheilos, 
A. metriocheilos and A. elatius (microcheilos) or Alpinia ela- 
tior of Jack. 
To Stenochasma belong two species S. urceolare, and S. 
convolutum. 
The Achasma section approaches nearest to Alpinia, the 
anthers generally assuming that form, and being smoothish 
or smooth. 
