116 
typical C. Brocchiana er be a glabrous plant, our hypotheti- 
cal sixth form. The third form, with leaves equally floccose- 
Say. 
another distinct variety of C. Noe By this decision 
In 1866, Miiller again endorsed this view and — oa 
second form, from Senegal, in the Nubian C. Broc 
in place of the three varieties indicated by Sienna *‘usiler 
now recognised only two. Schweinfurth’s three varieties were 
distinguished with reference to the tomentum; his first variety 
having leaves Beret on both sides, his second having them 
floccose on bot es, his last having them glabrous above and 
floccose below aying no regard to the tom 
united those specimens of our third form in which the leaves are 
was ared to accept as C. Brocchiana a plant which, if cor- 
rectly deli ae is without any tomentum he, following the 
ecti f Baillon in 1858, on the ground of their agreement as 
eaves tomentose on both sid n one side, and on neither side 
They, however, further disregarded the character supplied by 
the shape of the leaf blade which Miller had relie ed. As 
what Schweinfurth had described as var. Hartmannz is, in fact, 
the original C. Brocchiana, Vis. The situation thus simplified is 
ep expressed. The distinction eek tween C. senegalensis and 
cchiana, as understood by Pax and Hoffman, depends on 
a “igle character r, in C. aigutinrs bis tomentum consists of 
sessile, in rocchiana of stipitate hai 
In 1912, ae another view of the as eo forms was pub- 
lished independently in the ‘Flora of Tropical Africa.’ ate 
same character was used for purposes of Aes s but was re- 
garded as of varietal not of specific importance. Striking tioush 
it be, it was felt that it could not be deemed of greater conse- 
quence than a combination of characters which indicated a cleay- 
age plane at nEet angles to that supplied by the stalked or sessile 
be aire. he characters relied on as primary were the manifest 
terophylly, combined with a glabrous or nearly glabrous upper 
pont of a dark green leaf, and a distinctly hee i ios 
