Commelina. | CXLIII. COMMELINACEE (CLARKE). 37 
Beitr. Fl. Aethiop. 206, 295. C. barbata? Rendle in Cat. Afr. Pl. 
Welw. ii. 76, not of Lam.—Pluk. Phytogr. t. 27, fig. 4, not Alm. p. 135. 
Nile Land. British East Africa: White Nile, Petherick! D’ Arnaud! 
Niamniam, Schweinfurth, 3739! 3797! 
Upper Guinea. Sierra Leone; Sugarloat Mountain, Welwitsch, 6625! 
6625B ! and without precise locality, Don, 2! Vogel,11! Scott-Elliot, 3875! Hart ! 
Niger Territory : Opobo, Holland, 140! Old Calabar, Holland, 75! Robb! Came- 
roons : Cameroon Mountain, Mann, 2137 ! Batanga, Bates,18! Efulen, Bates, 268 ! 
and without precise locality, Preuss, 1320! Fernando Po, Vogel, 67! 
Lower Guinea. Island of St. Thomas, Moller,9a! Quintas,9! Don, 1! F1. 
Afr, Exsic. Herb. Conimbric. 112! Gaboon : Munda; Sibange Farm, Soyaux, 378 ! 
French Congo: Bramaya, Paroisse, 209 ; Nyanga River, Dybowski, 14; Brazzaville, 
Dybowski ; Njobe, Schwebisch and Thollon. Loango,.Soyaux, 16! Congo Free 
State: Lower Congo; Bingila, Dupuis! Kisantu, Gillet! Lukungu, 1000-2000 it., 
Hens, ser, A, 247! and without precise locality, Smith! Boma, Monteiro! Angola: 
north of Ambriz, Welwitsch, 6612! between Ambriz and Mosul, Welwitsch, 6623 ! 
by the River Bengo, near San Antonio, Welwitsch, 6617! by the larger lake of 
Quilunda, near Prate, Welwitsch, 6619! Golungo Alto; near Canguerasange and 
Zengas do Queta, Welwitsch, 6609! by the River Quiapoze, and at Varzea d’Isidre, 
Welwitsch, 6608 ! Sange, Welwitsch, 6606! Mossamedes; by the River Bero, 
Welwitsch, 6580! by the River Cuanza, Johnston ! 
South Central. Congo Free State: Mpala, on Lake Tanganyika, De Beerst ! 
Mozamb. Dist. Portuguese East Africa? Lower Zambesi, Expedition Island, 
Kirk! British Central Africa: Nyasaland; Mount Sochi, Scott-Elliot, 8652 ! 
Kondowe to Karonga, 2000-6000 ft., Whyte ! 
In the tropical and warm temperate regions of the world—a weed, 
The typical C. xudiflora is a weak rambling plant with distant long-lanceolate 
leaves and acuminate spathes. OC. agraria, Kunth, is a shorter, neater plant with 
shorter (almost ovate) shortly acute leaves, and short spathes. C. werneana, Hassk., 
18 a robust state with leaves up to 33 in. long, and long spathes. The Lower Guinea 
form, referred doubtfully by Rendle to C. darbata, may be a distinct species; it has 
the mature leaves densely hairy on both surfaces, the stem nearly concealed by the 
“pproximate hairy leaf-sheaths; but it has the capsule and seeds exactly of C. nudiflora, 
and must be closely allied to it. 
2. C. Sabatieri, (’. B. Clarke in DC. Monogr. Phan. iii. 146. Nearly 
glabrous. Root fibrous. Stems decumbent, nearly concealed by the 
leaf-sheaths. Leaves 1 by 4-1 in., elliptic-oblong, scarcely acute, 
Margins wavy, whitened, subsessile ; leaf-sheaths scarious, inflated, 
slightly hairy at the mouth. Spathes rather more than 4 in. long, 
Smnply folded, ovate, acute, nearly sessile, ie., the peduncle hardly 
exserted from the leaf-sheath. Capsule and seeds as of C. nudiflora.— 
Durand & Schinz, Conspect. Fl. Afr. v. 427. 
Nile Land. British East Africa : Sources of the White Nile, Sabatier ’ 
3. ©. scandens, Welw. ex C. B. Clarke in DC. Monogr. Phan. iii. 146. 
Robust, nearly glabrous. Stems 5-10 ft. long, little divided, with inter- 
nodes 3-4 in. long. Leaves 44 by } in., linear. Peduncles exserted 
3-1 in., often from the lower leaf-sheaths. Spathes 1-2} in. long, 
Simply folded, ovate-lanceolate, long attenuate, rounded at the base. 
Petals deep blue. Capsule nearly } in. long; seeds more than 4 in. 
