858 xcvii. LABIATE. [Basilwum 



Barra do Bengo. — At Quifandongo fl. and fr. Dec. 1853. No. 

 5547, partly. In damp places at the river Bengo, near Quifandongo ; 

 fr. May 1854. Coll. Carp. 856. 



LoANDA. — An annual herb, but little aromatic, 1 to 3 ft. high ; 

 primary stem purplish ; angles of the stem and branches constantly 

 and coarsely muricate ; flowers small, violet-purple ; calyx bilabiate, 

 the top tooth evidently decurrent on the margins, the lower teeth 

 lanceolate-acuminate, not setaceous ; lower corolla-lip reflected ; 

 nucules almost ellipsoidal, scarcely ovoid-compressed, somewhat 

 smooth. In damp sandy places by ponds, not uncommon ; near 

 Imbondeiro dos Lobos ; fl. and fr. 26 March 1858. No. 5582 and 

 Coll. Carp. 854. 



2. B. myriostachyum 0. Kuntze, Eev. Gen. PL ii. p. 512 (1891). 



Moschosma myriostachya Benth. in Benth. k, Hook. f. Gen. PI. 

 ii. p. 1173. 



Mossamedes. — An annual or biennial herb, branched from the base, 

 stems oblique or ascending ; leaves ovate, obtuse at the apex, more or 

 less cordate at the base, sprinkled on both faces with short stiff hairs 

 and small glands, somewhat spotted, very brittle, crenate, 1 to 2| in. 

 long by I to 2 in. broad ; petiole |^ to 1 in. long, hairy ; flowers 

 dioecious, on very short pedicels, small, arranged in spikelike 

 racemes of ^ to 1 in. long which form pyramidal panicles terminating 

 the stem and upper branches, soft, quite white, making the plant 

 when in flower look as if covered with snow ; the male spikes rather 

 dense, the female ones very dense ; calyx purplish ; stamens 4, didyna- 

 mous, exserted ; style bifid, exserted. At the sandy banks of the 

 river Bero, near Cavalheiros, very rare ; male fl. July 1859. No. 5476. 



Bumbo. — At Bumbo ; female fl. Oct. 1859, one specimen. No. 5477. 



7. ORTHOSIPHON Benth.; Benth. & Hook. f. Gen. PI. ii. p. 1174. 



1. 0. tuberosus Briq. in Engl. Bot. Jahrb. xix. p. 172 (21 Aug. 

 1894). 



Huilla. — Flowers rosy purple. In the drier pastures among low 

 bushes, near Lopollo ; fl. and fr. Jan. 1860. No. 5474. A perennial 

 herb, 5 to 7 in. high ; rootstock tuberculose-filipendulous ; stems 

 numerous. In thickets on the high plateau of Huilla about Lopollo, 

 at an elevation of 5000 to 5600 ft., not uncommon ; fl. and fr. May 

 1860. No. 5497. 



2. 0. tubulascens Briq., I.e., p. 174. 



Huilla. — Flowers rosy purple. In very elevated sandy meadows 

 among low herbs, in Morro de Lopollo (Sambos) ; fl, and fr. Jan. and 

 Feb. 1860. No. 5492. 



3. 0. menthsefolius Briq., Z.c, p. 176. 



Huilla. — A slightly aromatic, perennial herb ; rootstock woody, 

 filipendulous ; stems several, erect, branched at the apex ; flowers 

 white ; corolla shaggy ; nucules obovoid, truncate at the apex ; fila- 

 ments hirsute. In moist thickets close to the Lopollo river, plentiful ; 

 fl. and fr. 8 Feb. 1860. No. 5475. 



4. 0. Welwitschii Rolfe in Bol. Soc. Brot. xi. p. 88 (1894). 

 0. adornatus Briq., Z.c, p. 176 (21 Aug. 1894). 



With regard to the question of priority between these two 

 names it may be observed that Rolfe's paper was noticed in Bot. 



