194 THE (ORCHID REVIEW. — [JuLy, 1923. 
newer amateurs their names are sometimes unknown. Fortunately there 
are still a few nice plants about of Odontoglossum citrosmum, but the 
example exhibited by Sir Jeremiah Colman at the R.H.S. meeting on June 
12th was so well above the average in point of coloration that it came very 
near receiving an award. O. citrosmum is a native of Mexico, where it has 
‘been collected on many occasions, notably by M. Reezl, who stated in 
La Belgique horticole, 1883, p. 229: ‘‘ Great was my surprise to see the trees 
clothed with a profusion of Orchids, which proved to be Odontoglossum 
.citrosmum, whose pendulous spikes, a yard long, were adorned with 
innumerable white and lilac flowers, which perfumed the air with their 
delightful fragrance. The stoutest branches of the oaks were literally 
loaded, and it was a pleasure to see the profusion of flowers produced by 
‘these plants, a single spike bearing upwards of thirty expanded flowers. 
During several days’ march we noticed that all the oak trees were clothed 
in this way by the same Orchid, which flowers the more freely it is exposed 
to the direct rays of the sun.” 
ORCHIDS OF CENTRAL AMERICA. 
ee the title of Additions to the Orchid Flora of Central America, 
with observations on noteworthy species, Prof. Oakes Ames has issued 
No. 40fhis Schedule Orchidiane. It comprises one new genus and forty new 
species. They represent, for the most part, Costa Rican Orchids sent for 
identification by Captain Arthur W. Hill, Director of the Royal Gardens, 
Kew, and by Mr. C. H. Lankester. Several species from Panama, which 
appear to be new, are included, these having been detected in recent 
collections made by Mr. C. W. Powell near Panama City. There are also 
included several species which demand attention because they have 
remained obscure since the date of publication or have been misunderstood 
in recent work on the Orchids of Central America. 
Lankesterella is the new genus. It is a member of the Spiranthine, 
distinguished in part from its allies by the free petals, and transversely 
complanate curved column which is produced into a foot. There is no 
rostellar projection as in Spiranthes and its allies. In habit it is said to 
resemble those species of Stenorrhynchus which Dr. Schlechter transferred 
to Cladobium. L. costaricensis is the species described. 
With regard to Epidendrum equitans, Mr. Oakes Ames says there are 
two species which have passed under this name. The older one was 
described by Ruiz and Pavon from Peruvian material. For the Central 
American species, now known to range from Mexico to Panama, the new 
name E. equitantifolium is proposed. Epidendrum gravidum, E. trachycat- 
pum and E. Lankesteri are the subjects of two excellent full-page plates 
which add greatly to the value of this publication. 
