Centralbl. 86, Abt. 2 (1918) 415. 
Since this species exemplifies our conception of the 
genus Ornithidium in having the base of the lip immov- 
ably joined to the base of the column, the transfer from 
Camaridium becomes necessary. However, the prior use 
of the epithet ambricatum in Ornithidium makes it req- 
uisite to choose another name and Sehlechterianum is 
selected. 
Ornithidium Wrightii (Sch/tr.) C. Schweinfurth 
comb, nov. 
Camaridium Wright Schlechter in Fedde Repert. 
16 (1920) 448. 
An analytical drawing of typical Camaridium Wright- 
wz, made under the supervision of Dr. Schlechter, shows 
that the lip is rigidly attached to the column as in the 
genus Ornithidium. 
A large collection from Costa Rica (Lankester 571) 
is surely referable to this species. Its flowers appear to 
be identical with those of Camaridium Wrightii, except 
that both the sepals and petals appear to have five to sev- 
en nerves. Vegetatively, however, it is a much smaller 
plant. The pseudobulbs, which are ancipitously suborbic- 
ular-ellipsoid, range from 1 to rarely 2 cm. in length and 
the oblong-elliptic leaves (in form like the type) reach a 
maximum length of 7.8 em. and a width of 1.8 cm. 
Pleurothallis dentipetala Rolfe ex Ames in Sched. 
Orch. 3(January 1923) 7— Ames in Sched. Orch. 7 (1924) 
ie Te Ee 
Pleurothallis steidiformis Schlechter in Fedde Re- 
pert. Beihefte 19 (November 1928) 195. 
Pleurothallis Cooperit Schlechter in Fedde Repert. 
Beihefte 19 (November 1923) 286. 
As shown by the description of Plewrothallis stelidi- 
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