Notes

VARIATION. Occurring over an extensive range of habitat and altitude, this widespread species is very variable. Although some of the variants show a correlation with geography, they do not seem sufficiently clearly defined to justify their being given names. In East Africa there are three principal ones: 1. With subglabrous stems and leaflets. On Zanzibar and in the neighbourhood of the Tanganyika coast usually at low altitudes up to about 300 m. (though Schlieben 4076, from the Uluguru Mts. at 1400 m., is this variant). Greenway 5169, Vaughan 1326 and 1341 all belong here, and also no doubt the type of C. petersiana. 2. With the stems ± densely pubescent and the lower surface of the leaflets varying from thinly appressed-hairy to rather densely pubescent. The commonest form in Uganda, Kenya and Tanganyika from about 300 m. upwards. All the Uganda and Kenya specimens cited above belong here, as does Watkins 405 in F.H. 3095 from Tanganyika. 3. With the stems and lower surface of the leaflets tomentose. Restricted to S. Tanganyika, between about 200 and 1400 m. alt. Examples are: Mbeya District, Mbozi-Abercorn road, near frontier, 30 Mar. 1932, St. Clair-Thompson 1117 !; Rungwe District, Bulambia, 15 Mar. 1913, Stolz 1946 !; Kilwa District, Madaba, 20 June 1932, Schlieben 2480 ! This variant is C. petersiana var. tomentosa Bak. f., L.T.A.: 634(1930).Particularly in territories to the south of the Flora area perplexing intermediates occur between the above three categories, together with other variations (e.g. forms with small narrow leaflets in the Transvaal and Mozambique) that are absent from East Africa. Milne-Redhead & Taylor 10354, cited above, is intermediate between categories 2 and 3.Further evidence is required about the pods of the three variants described above. Those of (1) are usually narrow, up to about 1.1 cm. wide, while those of (2) are often up to 1.3–1.5 cm. wide, but the material is insufficient and it is not always certain whether the pods available are really mature.The bracts of C. petersiana vary very greatly in width, from lanceolate to reniform, sometimes in the same inflorescence. Pairs of glands, rather similar to those on the leaf-rhachis, occur on the inflorescence-axis, occupying the position of stipules in relation to the bracts.

Notes

VARIATION. Occurring over an extensive range of habitat and altitude, this widespread species is very variable. Although some of the variants show a correlation with geography, they do not seem sufficiently clearly defined to justify their being given names. In East Africa there are three principal ones: 1. With subglabrous stems and leaflets. On Zanzibar and in the neighbourhood of the Tanganyika coast usually at low altitudes up to about 300 m. (though Schlieben 4076, from the Uluguru Mts. at 1400 m., is this variant). Greenway 5169, Vaughan 1326 and 1341 all belong here, and also no doubt the type of C. petersiana. 2. With the stems ± densely pubescent and the lower surface of the leaflets varying from thinly appressed-hairy to rather densely pubescent. The commonest form in Uganda, Kenya and Tanganyika from about 300 m. upwards. All the Uganda and Kenya specimens cited above belong here, as does Watkins 405 in F.H. 3095 from Tanganyika. 3. With the stems and lower surface of the leaflets tomentose. Restricted to S. Tanganyika, between about 200 and 1400 m. alt. Examples are: Mbeya District, Mbozi-Abercorn road, near frontier, 30 Mar. 1932, St. Clair-Thompson 1117 !; Rungwe District, Bulambia, 15 Mar. 1913, Stolz 1946 !; Kilwa District, Madaba, 20 June 1932, Schlieben 2480 ! This variant is C. petersiana var. tomentosa Bak. f., L.T.A.: 634(1930).Particularly in territories to the south of the Flora area perplexing intermediates occur between the above three categories, together with other variations (e.g. forms with small narrow leaflets in the Transvaal and Mozambique) that are absent from East Africa. Milne-Redhead & Taylor 10354, cited above, is intermediate between categories 2 and 3.Further evidence is required about the pods of the three variants described above. Those of (1) are usually narrow, up to about 1.1 cm. wide, while those of (2) are often up to 1.3–1.5 cm. wide, but the material is insufficient and it is not always certain whether the pods available are really mature.The bracts of C. petersiana vary very greatly in width, from lanceolate to reniform, sometimes in the same inflorescence. Pairs of glands, rather similar to those on the leaf-rhachis, occur on the inflorescence-axis, occupying the position of stipules in relation to the bracts.

Notes

VARIATION. Occurring over an extensive range of habitat and altitude, this widespread species is very variable. Although some of the variants show a correlation with geography, they do not seem sufficiently clearly defined to justify their being given names. In East Africa there are three principal ones: 1. With subglabrous stems and leaflets. On Zanzibar and in the neighbourhood of the Tanganyika coast usually at low altitudes up to about 300 m. (though Schlieben 4076, from the Uluguru Mts. at 1400 m., is this variant). Greenway 5169, Vaughan 1326 and 1341 all belong here, and also no doubt the type of C. petersiana. 2. With the stems ± densely pubescent and the lower surface of the leaflets varying from thinly appressed-hairy to rather densely pubescent. The commonest form in Uganda, Kenya and Tanganyika from about 300 m. upwards. All the Uganda and Kenya specimens cited above belong here, as does Watkins 405 in F.H. 3095 from Tanganyika. 3. With the stems and lower surface of the leaflets tomentose. Restricted to S. Tanganyika, between about 200 and 1400 m. alt. Examples are: Mbeya District, Mbozi-Abercorn road, near frontier, 30 Mar. 1932, St. Clair-Thompson 1117 !; Rungwe District, Bulambia, 15 Mar. 1913, Stolz 1946 !; Kilwa District, Madaba, 20 June 1932, Schlieben 2480 ! This variant is C. petersiana var. tomentosa Bak. f., L.T.A.: 634(1930).Particularly in territories to the south of the Flora area perplexing intermediates occur between the above three categories, together with other variations (e.g. forms with small narrow leaflets in the Transvaal and Mozambique) that are absent from East Africa. Milne-Redhead & Taylor 10354, cited above, is intermediate between categories 2 and 3.Further evidence is required about the pods of the three variants described above. Those of (1) are usually narrow, up to about 1.1 cm. wide, while those of (2) are often up to 1.3–1.5 cm. wide, but the material is insufficient and it is not always certain whether the pods available are really mature.The bracts of C. petersiana vary very greatly in width, from lanceolate to reniform, sometimes in the same inflorescence. Pairs of glands, rather similar to those on the leaf-rhachis, occur on the inflorescence-axis, occupying the position of stipules in relation to the bracts.