184 DR. J. D. HOOKER ON THE PLANTS 
4. ARENARIA AFRICANA, H.f.,n. sp. Tota (superne precipue) glandu- 
loso-pilosula v. pubescens, caulibus gracilibus prostratis, foliis distan- 
tibus sessilibus lanceolatis acutissimis membranaceis, floribus ad apices 
ramorum paucis laxe paniculatis, sepalis oblongis subacutis anguste 
marginatis, petalis angustis retusis v. breviter 2-lobis, stylis 5, capsula 
oblonga 5-valvi, seminibus aurantiacis granulatis. 
Hab. Cameroons Mountains, alt. /000-10,000 feet. (Fl. Dec.) 
Caules 4-\-pedales, laxe ramosi, debiles, fragiles, internodiis 1-2 unc. 
longis. Folia patentia, plana, pollicaria, basi obtusa, utrinque glan- 
duloso-pilosa. Panicula pauciflora, pedicellis 4-3 unc. longis. Flores 
4 unc. diam. Sepala viridia, planiuscula. Petala sepalis longiora, 
alba, tenuiter membranacea, sensim apicem versus latiora, apice ro- 
tundato retuso v. 2-fido. Stamina 10, filamentis tenuissimis. Ova- 
rium lineari-oblongum. Capsula sepalis paulo longiora. Semina ad 
10-12, compressa, opaca, cotyledonibus incumbentibus. 
A flaccid slender species, much resembling some very weak 
shoots of the North-African A. procumbens; but the flowers are 
white, the leaves are very different, the cotyledons accumbent, 
and, as far as I can make out, the capsule is only 5-valved. I 
know of no very nearly allied species. The petals are sometimes 
as much bifid as in many Stellarias; they vary much, sometimes 
even in the same flower. 
5. SAGINA AnBvssiNICA, Hochst. (ante, vi. 6). 
Hab. Fernando Po, alt. 8500 feet. Cameroons Mountains, alt. 9000- 
11,000 feet. (Fl. Nov.-Jan.) 
Plant sometimes forming dense hard tufts with woody roots. 
6. DRYNARIA CoRDATA, Willd. 
Hab. Cameroons Mountains, alt. 7000 feet. (Fl. Dec., Jan.) 
8. HYPERICINEÆ. 
1. HYPERICUM ANGUSTIFOLIUM, Lamk. (ante, vi. 6). 
Hab. Fernando Po, alt. 7000-10,000 feet. Cameroons Mountains, alt. 
4000-8000 feet. (Fl. Dec.) 
l The leaves of Cameroons specimens are as narrow as of Abys- 
sinian, and as well as the calyx are copiously glandular, but have 
few black dots. 
9. LINEE. 
1. RapioLa MILLEGRANA, L. 
Hab. Cameroons Mountains, alt. 7000 feet. (Fl. Dec.) 
Absolutely identical in every particular with the European 
