was one of the most enthusiastic collectors of Mexican 
orchids. Due to the fact that Lindley’s name is a hom- 
onym of the earlier Hartwegia Nees, it is necessary to 
give the genus a new name. 
To carry out Lindley’s idea of honoring a collector 
especially interested in Mexican Orchidaceae, I take this 
opportunity of renaming the genus for Mr. Otto Nagel. 
Mr. Nagel, collecting in Mexico just one century after 
Hartweg, has probably collected more species and spec- 
imens of Mexican orchids and travelled more widely over 
Mexico than any other collector who has ever been in 
that delightful country. 
Nageliella is a monotypic genus. Two other species 
which were described under Hartwegia Lindl. appear to 
belong elsewhere. 
Dr. R. Mansfeld (Notizbl. Bot. Gart. Berlin 13 (1988) 
667) has indicated that he thought that Hartwegia should 
be referred to the subtribe Laeliinae ( Laelieae) rather 
than to the Ponerinae ( Ponereae). The two subtribes 
stand very close to one another, and it is sometimes dif- 
ficult to distinguish them; but it seems best to retain 
Nageliella in the Ponereae, since I find a distinct column- 
foot in Nageliella which is never found in the genera of 
the Laeleae. 
3. THE ORCHID GENERA CoELIA Lindley Ann 
Boruriocnitus Lemaire 
In 1880, Lindley described the genus Coelia in his 
Genera and Species of Orchidaceous Plants, p. 86, basing 
it on a drawing made by Bauer. When he received ma- 
terial for study, the characters of the genus were emended 
(Bot. Reg. 28 (1842) t. 26). 
Four additional species have been referred to the 
genus since its publication. All four of these species are 
at variance with the original species in a number of char- 
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