50 xcviii. ACANTHACE.E (clarke). [Endosiphou. 



side subacute, the other rounded lower down the petiole ; in the upper 

 pair of leaves one often reduced to \-l in. long. Pedicels 1-1 J in. long, 

 solitary, axillary, with spreading hairs ; bract ; bracteoles, 2, sub- 

 opposite }-\ in. long, linear, placed about \ in. below the calyx. Calyx 

 J-1 in. long, divided almost to the base ; segments slightly unequal, 

 linear-ligulate, minutely hairy and hispid with long white spreading 

 hairs. Corolla blue {G. Mann) ; tube 1-1 A in. long : limb almost salver- 

 shaped, l\ in. in diam., of .") subequal roundish lobes contorted in 

 bud. Stamens 4, subequal ; anthers long, linear, muticous, glabrous ; 

 pollen shallow-honeycombed. Ovary glabrous, H-12-ovuled. — Lindau in 

 Engl, (fc Prantl, PHanzenf. iv. 3B. 308; T. Anders. MS. in herb. Kew 

 {primulo'Jioi'us). 



Upper Guinea, Fernand > Po, 1000 ft., Mann, 571 ! 



2. E. obliquus, C. B. Clarke. Leaves up to 5 by 2 in., rather 

 harsh, cy^t()litlKs very large; petals very short, base of leaf very unequal, 

 lower side rounded or subcordate; one leaf of every pair (seen) greatly 

 reduced, ^-J in. long. Pedicels \\ in. long, bracteoles longer than in 

 B. primiUoides and farther from calyx. Calyx-segments up to 1 J in. 

 long. Corolla puiple (Bates) ; tube 2 in. long ; otherwise as E. primu- 

 loides. 



I^ower Guinea. Gaboon Munda ; Sibange Farm, Biittner, 357 ! ^yaux, 

 395 1 Como River, Bales, 457 1 



Furtlier material may show this to be a form of E. primvloides. 



10. MELLERA, S. Moore in Journ. Bot. 1879, 225. 



Calyx divided nearly to base ; segments 5, subequal, linear-oblong. 

 Corolla 1 in. long, divided half-way down, 2-lipped ; segments contorted 

 in bud, the middle one of anticous lip much broader, ovate-oblong. 

 Stamens 4, subsimilar; anthers 2, all spurred at the base or (in M. 

 suhmutica) spur nearly or quite wanting; pollen subglobose, longi- 

 tudinally many-ribbed. Style with one oblong-linear stigmatic arm, 

 the other suppressed; ovary with 4-G ovules in each cell. Capsule 

 subcylindric, seed-bearing nearly from the base ; seeds more than 4 per- 

 fected, glabrous on the faces, with many long white hygroscopic hairs 

 on the edges. — Small shrubs. Leaves toothed. Flowers few in the 

 upper axils, running into an apparently bracteated terminal spike. 

 Bracteoles 2, linear-oblong, as long as the calyx. 



Species 3, confined to Tropical Africa. 



These plants were placed by Bentham next Paulowilhelmia and Mimulopsis, from 

 which they differ by the 2-lipped corolla with the tube inflated nearly from the base. 

 Because of the 2-Hpped corolla, S. Moore and Lindau place the genus near Hygrophila, 

 froui which it is remote in habit. 

 Anther-cells all spurred at the base. 

 Inflorescence dense . . . . . . . \. M. iohulata. 



Lateral cymes of the panicle loose 2. J/, mjassana. 



Anther-cells nearly muticous at the base . . . . 3. J/, i^ubmutica. 



1. M.lobulata, S. Mowe in Journ. Bot. 1879, 225, t. 203. Hairy. 

 Leaves 2-3 J by 1-2 in., lower up to 8 J by 4 in., ovate-lanceolate 



