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XXIX.—LIST OF PLANTS COLLECTED IN 
NORTHERN NIGERIA BY 
CAPTAIN A. W. HILL, 1921. 
J. HutTcHInson. 
The flora of Northern Nigeria was first made known to us 
by Dr. Theodor Vogel, the botanist accompanying the British 
expedition to the Niger under the command of Captain Trotter 
in 1841. His collections formed the basis of Bentham & Hooker’s 
Niger Flora, edited by Sir William Hooker and published in 
1849. Nearly twenty years later one of the finest collections. 
ever brought from Tropical Africa was made in Nigeria by 
Mr. Charles Barter, attached to the Niger Expedition under 
Dr. Baikie. Many of Barter’s plants were gathered in the Nupé 
district of Northern Nigeria, and they have mostly been described 
in the Flora of Tropical Africa and other works. 
It was not until about the year 1904 that plant collecting 
in Northern Nigeria was resumed, and since then Kew has 
continued to receive a considerable number of dried specimens,. 
mainly from officers attached to the Forestry and Agricultural 
departments, and also from medical officers. Chief amongst 
the latter is a finely preserved collection begun Dr. 
J. M. Dalziel in 1906 and received through the Imperial Institute. 
From the determinations made at Kew Dr. Dalziel compiled 
his most useful Hausa Botanical Vocabulary, published in 1916. 
There are still a number of Dr Dalziel’s plants to be finally 
worked out, and one or two, together with a few collected by 
Myr, Fy. Lely, Forestry Officer, Northern Nigeria, are made 
co-types of species described for the first time in the present 
paper. As Mr. Lely’s investigations are still being energetically 
continued, however, his plants form the basis of a separate 
memoir as his material accumulate 
The present is a list of the ey collected in Northern 
Nigeria in March 1921 by the Assistant Director, who has supplied 
the following particulars and notes to some of the descriptions. 
The collection consists of some 35 specimens gathered round Jos. 
and Naraguta on the Bauchi Plateau, chiefly among the dry 
granitic hills, at an elevation of about 4,000 ft. Though it- 
was the close of the long dry season the number of plants in 
flower was remarkable and in the short time available only 
comparatively few of the plants in flower were collected. Of the 
other plants, some 20 in number, the majority came from Zaria. 
and Maigana about 15 miles from Zaria. Here the elevation 
is about 2,000 ft., and the soil is either laterite or granitic. 
As on the Plateau, ‘the ground was very hard and dry since there 
had been no rain for about six months. A few plants were 
also found at Kaduna. Seeds of several plants were brought 
home and some of these have germinated, and may prove to be 
of horticultural interest. The new species of Ochna is a plant- 
