Stemodiaa'a] lxxxix, scrophulaeiacEjE. 759 



(1882). Terebinthina sessiliflora 0. Kuntze, Rev. Gen. PI. ii. 

 p, 468 (1891). 



HriLi.A. — Habit of a Limuopliila ; flowers purplish. In rivulets at 

 the point of drying up and at their banks, from LopoUo to Catumba ; 

 fl. and fr. Dec. 1859 and April 1860. The seeds are obtusely angular. 

 No. 5777- Annual ; habit of a Mijriophyllwn ; stems crowded, 

 sparingly branched, cylindrical, obsoletely striate, spongy-lacunose, 

 floating ; leaves 5- to ll-verticillate, the submerged ones capillary- 

 multifid, the emerged ones unlobed, mostly deeply tridentate, rosulate, 

 all more or less impressed-areolate on the surface ; calyx-teeth here 

 and there unidentate at the tip; corolla violet-whitish, the tube with 

 a yellowish tinge ; the limb with 3 lower segments and 2 upper lobes ; 

 stamens 4, didynamous, the anthers bilocular and cohering in pairs ; 

 ovary 2-celled ; style rather short ; stigma bilamellate ; capsule bisulcate, 

 bilocular, rather compressed. In streams from Lopollo to Nene and 

 towards Ohai, plentiful, in company with Potamogetonjavanictis Hassk. 

 (Welwitsch No. 248) and species of Ottelia ; fl. and young fr. middle 

 of May 1860. No. 5776. 



2. S. ceratophylloides Hiern, sp. n. 



A herb with the habit of a Ceratophyllum, submerged or at 

 the time of flowering with the upper part of the stems emerged ; 

 stems subcylindrical, glabrous, slender, about a foot long, branched, 

 at length bare towai'ds the base, leaf j' above ; leaves verticillate, 

 capillary-multifid, f to 1 in. long, rather rigid in the living state ; 

 flowers axillarj', subsessile ; calyx membranous, shortly 5-cleft ; 

 capsule (not quite ripe) ellipsoidal, sub-compressed, bisulcate, 

 somewhat emarginate at the apex, 2-celled, 2-valved, about |- in. 

 long, the valves septiferous along the middle ; placentas adnate 

 on both sides to the septum, fleshy, forming a central cylindrical 

 column ; unripe seeds several, rather large, apparently horizontal, 

 ellipsoidal-ovoid, smooth, with a protruding hyaline aril at the base. 



HuiLLA. — In the deeper muddy streams between Lopollo and 

 Humpata ; also in streams and in the neighbouring limpid pools in 

 Morro de Lopollo and on the Humpata plateau near Nene ; in young 

 fr. April 1860. No. 5778- 



'This is the Limnophila referred to by Welwitsch in Journ. Linn. 

 Soc. V. p. 187 (1861). 



3. S. tenera Hiern, sp. n. 



A nearly glabrous, tender, erect herblet, 1 to 2 in. high, 

 caespitose, apparently annual ; stems numerous ; branches spread- 

 ing ; leaves opposite, lanceolate or sublinear, scarcely acute or 

 sub-apiculate at the apex, but little narrowed at the sessile clasp- 

 ing base, entire, x^- to | in. long, spreading ; flowers axillary and 

 terminal or quasi-terminal, mostly alternate, solitary and spread- 

 ing, about i in. long ; peduncles | to ^ in. long ; bracts subulate 

 _i_ to JjY in. long ; calyx yc- to i in. long, 5-partite, bibracteate at 

 the base, the segments subulate, erect or at length reflected ; 

 corolla bilabiate, from whitish to pale blue, slightly glandular- 

 puberulous outside, somewhat pilosulous about the throat inside ; 

 stamens 4, didynamous ; anthers short, 2-celled ; capsule about 



