Eriocaulo7i] xxvi. eriocaulace^. 101 



floral bracts glabrous, oblanceolate-spathulate, the outer obtuse, 

 the inner becoming acute ; female flowers on a short glabi-ous 

 pedicel, sepals obovate, boat-shaped, acute, slightly keeled with a 

 few short white hairs on the upper part of the back, unequal, the 

 outer-most the largest ; petals close above the sepals, fuscous, 

 narrow-linear, tapering downwards, apex blunt, irregular, often 

 bearing a few very short hairs, but no glands ; ovary trigastrous, 

 style with three filiform branches as long as the petals ; seeds pale 

 brown, striolate ; male flowers on glabrous pedicels, sepals linear, 

 free or unequally connate below, apex blunt or irregularly broken, 

 often with a few short white hairs, pedestal abovsithe calyx about 

 |- to f length of the sepals ; petals rudimentary, ovate-triangular ; 

 stamens 6, anthers black. 



Plants said to be completely submerged, flowering and fruiting 

 beneath the surface, 8 to 14 in. high. Leaves 2 to 4 in. in 

 length by about 1 line greatest width; scapes 6 to 13 in. long; 

 sheath 2 to 2^ in. Mature flower-heads 21 to 3^ lines across ; 

 involuci-al bracts f to 1 by f to ^ line; floral bracts 1 by nearly 

 i line. Stalk of female flowers i line long, sepals |^ to 1 line, 

 petals about 1 line ; stalk of male flower i line long, sepals 

 scarcely § line by -i^ to ^ line, the broader ones concave. 



Near the last species but distinguished by its submerged habit, 

 very narrow leaves, black heads, etc. 



HuiLLA. — Here and there by a large pond near the banks of the 

 river Mupanda. A few poor specimens collected during flight ; Feb. 

 18G0. No. 2456. Somewhat rare in gently flowing rather deep 

 streams between LopoUo and Nene, flowering in autumn. Produces 

 both flower and fruit beneath the water ; end of April 18('i0. All 

 the specimens seen grew at the bottom of a stream 2 to 15 ft. deep, 

 and the plant thus seems to flower and fruit beneath the surface. On 

 the muddy bottom of slowly flowing streams between Humpata and 

 Lopollo. in one place only, but plentiful there ; end of April 18G0. 

 No. 2457. 



9. E. stoloniferum Welw. ms. in herb. 



A glabrous perennial stoloniferous submerged herb ; leaves 

 radical, long, linear-tapering, acute, a very bright shining green ; 

 scapes solitary or few, far exceeding the leaves, multiangular 

 (7- or 8-), flattened when dried ; sheath much shorter than the 

 leaves, broad, with a bluntly bifid apex ; flower-heads subfuscous, 

 transversely elliptical, moncecious, flowers trimerous, the inner 

 often viviparous ; receptacle broadly truncately conical, glabrous ; 

 involucral bracts whitish, glabrous, spathulate-obovate, very 

 blunt ; floral bracts fuscous, glabrous, oblong- spathu late to 

 spathulate, blunt ; female flowers shortly pedicellate ; sepals 

 rhomboideo-obovate, concave, glabrous, fuscous; petals close 

 above sepals, cuneate to oblong-cuneate, the apex and upper 

 surface just below it tomentose, with a black subapical gland ; 

 ovary trigastrous, the 3 filiform stigmas exceeding the petals ; 

 seed yellowish-brown, spherico-pyriform, hilum brown, surface 

 faintly striolate ; male flowers with a short glabrous pedicel ; 



