Image from the Biodiversity Heritage Library.
Contributed by Harvard University Botany Libraries.
| www.biodiversitylibrary.org
Transcription
[7-3-34 Miss Mac Ewan found N. nigra at Rockers de
Naye, slopes, west ridge, at least several specimens]
6-24-34 Nigritella nigra Reich-Cote III 405-
SVKI/66 = N. augustiflora Reib. Box 512, FL.
Brought by V.M. Porter from Dent de Midi. Studied
carefully for comparison with N. rubra Richters
8504 I.
Enlarged 2x.
Lip is 6 1/2 mm long, 2mm wide at base. At 3 mm
from tip the edges slide sharply upwards
to form a sort of tubular effect but in fully
opened flowers the edges just don't touch.
The line dc is about 2.8 mm. When lip
is opened flat (hard to do) it is 4mm wide at
widest point which is about 1 1/2 mm above
the base.
In FL from which above meas. were taken
the 2 lateral outside perianth parts are 2mm
wide; the other parts (except lip) are 1 1/2 mm-
wide (all meas. at widest part). In the lateral
outside parts this widest part is below the middle;
the other parts are more uniform in widths.
Flowers very dark maroon (no bluish tinge which
would justify "purple"); lower bracts are green
(with neat red lined edge) to towards the tips
where supposed darker red upper bracts green at
base for shorter distance. The red part of bracts is
exactly the same shade as the lip.