FLORA NIGRITIANA. 541 
CXIV. CowwELYNEX. 
1. Commelyna communis, Linn.— Kunth, Enum. 4. gp. 36.—On 
the Quorra, at Stirling, Ansell.—This single specimen is the 
only one agreeing with the Eastern form deseribed with 
unilateral pubescence on the stem. 
2. Commelyna agraria, Kunth, Enum. 4. p. 38.—Sierra Leone, 
and on the Quorra, Vogel; St. Thomas, Don ; agreeing well 
with Kunth’s description as well as with American specimens, 
and apparently as common in West Tropical Africa as in 
Tropical America.* 
3. Commelyna sp.—A single specimen, without any station 
given, but a memorandum of Vogel’s stating that the flowers 
are yellowish. ‘The sheaths of the leaves are covered with 
long hairs ; in other respects it agrees with C. agraria. 
4. Commelyna Bengalensis, Linn.—Kunth, Enum. 4. p. 50.— 
On the Quorra, at Stirling, Ansell. 
5, Commelyna capitata, Benth. ; caule repente minute scabro- 
Puberulo, foliis subsessilibus ovato- v. oblongo-lanceolatis 
puberulis glabratisve, vaginis ore rufo-ciliatis, spathis turbi- 
nato-cucullatis in capitulum terminalem aggregatis margine 
rufo-ciliatis, pedunculis geminis altero incluso 3-4-foro, al- 
tero exserto unifloro.— Cape Palmas, Vogel. 
Ab affinibus distinguitur pilis ad margines spatharum nume- 
rosis et in spathas ipsas sparsis, et spathis 4-5 in capitulum 
sessilem v, pedunculatum confertis. Folia dissita, latitudine 
Varia. Sepala lata, tenuiter membranacea, eglandulosa. Pe- 
talum impar late ovatum. Capsule valvule crassiuscule nec 
nitide nec striate. 
6. Commelyna sulcata, Willd.—Kunth, Enum. 4. p. 56.— 
Sierra Leone, Don ; Accra and Fernando Po, Vogel. Flowers 
blue or white. 
7. Commelyna nigritana, Benth. ; caulibus basi repentibus mi- 
nute puberulis glabratisve, foliis sessilibus lineari-lanceolatis, 
vaginis ore hirtellis, spathis oppositifoliis breviter pedunculatis 
* Since the above was written I have had before me a number of East 
India Specimens, which lead me to doubt whether the C. agraria be 
really distinct from C. communis. 
