SPENCER MOORE: GAMOPETALE. 
199 
almost glabrous on both faces and strongly toothed along the 
margin. I was at first inclined to regard this as O. americanum, 
Mill., but further examination has led me to adopt Mr. Britten's 
suggestion that the plant would better be referred to O. suave. 
GENIOSPORUM PALUDOSUM, Baker, in Dyer, Fl. Trop. Afr. v. 352. 
Ruchigga. Fl. December, 481. 
Distrib. Nile Land, Mozambique District. 
MoscuHosMa RIPARIUM, Hochst. in Flora, xxviii. (1845) 67. 
Hillside, Musozi. Fl. January, 97. 
Distrib. Nile Land, Mozambique Distriet, Lower Guinea. 
OnruosrPrON (§ Virgati) VIATORUM, sp. nov. 
Herba erecta fere a basi ramosa ramis ascendentibus foliosis 
glabrescentibus, folis parvis oblongo-ovatis obtusis vel 
obtuse acutis serratis basi in petiolum brevem cuneatim 
angustatis scabriusculis, racemis ramis  sequilongis 
puberulis, vertieillastris 6- (raro 5- vel 7-) floris, bracteis 
ovatis acuminatis parvis sed cito majoribus et reflexis 
persistentibus, pedicellis quam calyx fere duplo brevi- 
oribus pubescentibus, calycis florescentis strigoso-puberuli 
lobo postico rubescente rotundato-ovato obtusissimo lobis 
reliquis lanceolatis lateralibus breviter anticis longe 
setaceo-acuminatis, calyce fructificanto paullulum solum- 
modo aucto recurvo, corolle tubo breviter exserto labio 
antico late ovato quam postieum 4-lobum breviore, 
staminibus inclusis. 
Hab. Roadside at Mulema. Fl. June, 327. 
Folia circa 20x 1:0 cm., in sicco olivacea, costis subtus 
prominentibus; petioli 02-0'4 em. long. Racemi saltem 
8:0 em. long. Bractez sub alabastris circa 0:2 em. long., 
mox adusque 0°35 em. amplificate. Flores dilute punicei 
(sec. cl. eollectorem). Pedicelli summum 0'3 em. long. 
Calycis florescentis 0°5 em. long. lobus posticus 0:2 x 0°25 
cm., lobi laterales 0:13 cm., antici 0°23 em. long. 
Calyx 
frueteseens 0'6 em. long. (tubus fere 0'4 em.). Corolle 
tubus extus pubescens, 0°6 cm. long. 0:12 cm. diam.; 
labium antieum 0'2 em. posticum 0'3 em. long. 
Apparently nearest O. heterochrous, Briq., an Angolan species 
known to me only by description, which has larger reddish 
leaves, deciduous braets (shape aud size not mentioned), violet 
