60 
i 
We learn from the lady who brought this to England, that 
the seeds are employed in Mexico as a source of arrow-root. 
The plant must therefore he extremely common in some parts 
of that country ; and we believe it has actually been imported 
in some abundance by a collector, who sold his stock to 
Messrs. Loddiges. 
83. LINDLEYA mespiloides. 
Humboldt Kunth nov. gen. et sp. plant. 6. 239. t. 562. 
This very rare and curious plant has just flowered in the 
Garden of the Horticultural Society, where a single specimen 
exists, which was raised sometime since from Mr. Hartweg’s 
Mexican seeds. It has something the appearance of Crataegus 
mexicana, but has a dry capsular fruit. It proves evergreen, 
and may possibly be hardy : but of that we have as yet no ex- 
perience. Humboldt compares it for habit with the common 
Apple, but it would be better likened to a small narrow-leaved 
Medlar. 
84. SPIRANTHES rosulata. 
S. (Sarcoglottis) rosulata; foliis oblongis coriaceis rosulatis glabris, scapo 
aphyllo birsuto 2-3-vaginato, spica ovata hirsuta, bracteis lineari-lanceo- 
latis dorso glabris, labelli oblongi rotundati venosi ungue apice excavato 
basi bicruri. 
A Guatemala plant, not unlike Spiranthes picta. It has 
a scape about nine inches high, and a close spike of green 
flowers. The leaves are most beautifully coated on the under- 
side with vesicular cells, which give them a peculiar frosted 
appearance. Mr. Hartweg sent it to the Horticultural 
Society from Guatemala. 
85. EPIDENDRUM collare. 
E. (Aulizeum) collare ; caulibus fusiformibus elongatis apice triphyllis, foliis 
coriaceis canaliculatis patentibus, racemo laxo paucifloro, ovario cunicu- 
lato, sepalis petalisque conformibus petaloideis lanceolatis, labello ovato 
obtuso undulato apice recurvo basi trilamellato, clinandrio margine ele- 
vato denticulato cincto. 
From Guatemala, where Mr. Hartweg found it. Its 
stems are 18 inches long, strong and deeply furrowed. The 
flowers are white, changing to yellow and brown as they go 
off. The anther-bed is surrounded by an elevated edge, 
