Aroides] xx. AROiDEiE, 91 



HuiLLA. — A pleasing tuberculose herb, 1 to 3 ft. high, with the 

 habit of A.athiopJaan, but spathes much smaller, deep sulphur-coloured 

 at the base, and blood-red inside. Leaves green, becoming glaucous 

 beneath. Somewhat plentiful in marshes by banks of streams near 

 LopoUo at an elevation of 5000 ft. In fl. Nov. and Dec. 1859. Nos. 

 232, 232". Wet spongy places at the great lake of Ivantrda, of lower 

 growth and flowering later. Feb. 1860. No. 232^. 



2. A. angustilobum O.K. (Arocles), I.e. 



Richardia angustiloba Schott in Journ. Bot. 1865 p. 35 ; Engl, 

 in DC. Men. Phan. ii. p. 329. Zantedeschia cmgustiloba Engl. 

 Bot. Jahrb., I.e. ; Durand & Schinz, I.e. 



PuNGO Andongo. — A fine herb, 4 to o ft. high, perennial with a 

 large oblong tuber. Leaves as much as 5 ft. long. Plentiful in deep 

 ponds between the islands of Calemba and Quisonde on the right of 

 the river Cuanza. In fr. March 1857. No. 230. Coll. Cakp. 1020. 



Material insufficient for determination. 



PuNGO Andongo. — An acaulescent herb, with a single leaf decom- 

 pound above, spathe very large, with the spadix 2 to 2^ feet. Fruit 

 elliptical, baccate, scarlet. Woods of Barranco de Catete. In fr. 

 May 1857. Coll Carp. 1021. 



XXI. LEMNACE.E. 



1. LEMNA L. ; Benth. & Hook. f. Gen. PI. iii. p. 1001. 



1. L. sequinoctialis Welw. Apont. p. 578 (1859). 



Z. angolensis Welw. ex Hegelmaier in Journ. Bot. 1865 p. 112; 

 Hegelm. Lemnac. p. 141 (1868); Durand & Schinz, Consp. Fl. 

 Afr. V. p. 484; Hegelm. in Engl. Bot. Jahrb. xxi. p. 296 (1895). 



LoANDA. — The small fronds 3 to 4 together, each with one rhizoid, 

 ovate-elliptical, smooth, somewhat fleshy, slightly convex, obtusely 

 longitudinally keeled on the upper face, ellipsoid at both ends, 

 minutely but distinctly corniculate ; flowers emerging from a marginal 

 slit. Grows in great quantity and very rapidly, covering large ponds 

 in a few days with a very dense growth 3 to 5 in. thick. The fertile 

 fronds with the seeds sink to the muddy bottom, where they germinate 

 in next year's rains, or if the rains fail will last for years without 

 hurt. Plentiful in deep ponds after the rains at Museque de Luiz 

 Gomez, Loanda. In fl. and fr. 10 Jan., 1858. No. 206- 



2. L. paucicostata Hegelm. Lemnac. p. 139, t. viii. (1868), and 

 in Engl. Bot. Jahrb., I.e., p. 294; Durand & Schinz, I.e., p. 485. 



L. minor Hegelm. in Journ. Bot. 1865, p. 112 (non L.). 



Ambriz. — Near L, minorhut differs in habit, obovate-elliptical fronds, 

 etc. Flowers not seen. Plentiful in lakes (Lagoa de Quizembo) on 

 the right of the river Loge and in almost stagnant streamlets near 

 Ambriz. Nov. 1853. No. 208. 



LoANDA.— Plentiful grownig with WoJffia rrpamid in deep ponds 

 near Bemposta. March 1854. No. 205 (in part). 



IcoLo E Bemgo. — Floating or resting on floating plants or drying 

 mud, with the habit of L. mhior, but has markedly elliptical fronds 

 and seems different in other respects. In a lake called Lagoa de 



