TANGANYIKA Territory: Neu Langenburg Distr., Bundali Mts., 
Ngulu Mt., 1400 m. alt., March 1914, Stolz 2554 (Typr.) 
A somewhat aberrant member of the genus charac- 
terised by the slender stems emitting a mass of aerial 
roots, the very small leaves, the elliptical petals and the 
narrow entire lip. It is probably most closely allied to 
R. longicalear Summerh. in which the lip is also longer 
than broad. The column and pollinarium characters agree 
well with those in other species of Rhipidoglossum. 
Rhipidoglossum rutilum (Reichenbach _filius) 
Schlechter in Beih. Bot. Centralbl. 86, Abt. 2 (1918) 81 
—Summerhayes in Blumea, Suppl. 1 (1937) 85. 
Mystacidium Kaessnerianum Kraenzlin in Viertel- 
Jahrsschr. Nat. Ges. Ziirich, 60 (1915) 395. 
The type gathering of Kraenzlin’s species (Adssner 
741) was cited by me under R. rutilum (Rehb.f.) Schltr. 
in the reference given above, but I had overlooked the 
original description. This agrees admirably with that of 
FR. rutilum and there can be no doubt as to the identity 
of the two. 
Oeonia volucris (Thouars) Sprengel Syst. Veg. 8 
(1826) 727. 
Epidendrum volucre Thouars Orch. Hes Austr.-Afr. 
(1822) t. 81. 
Until now this combination has been generally credited 
to Durand and Schinz, Consp. Fl. Afr. 5 (1895) 51, but 
the above reference has nearly 70 years’ priority. Spren- 
gel uses the original spelling Aeonza, but as ‘‘Oconia 
Lindl.’’ has been conserved against two earlier names 
and general usage also favours this spelling, it would ap- 
pear best to maintain it. Confusion with the Crassula- 
ceous genus Aeonium Webb & Benth. is also avoided. 
DIAPHANANTHE Schlechter 
An examination of material of practically all the spe- 
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