66 : MR. H. N. RIDLEY ON PLANTS 
GAMOPETAL Z. 
RUBIACEX. 
(By H. F. WERNHAM.) 
ARGOSTEMMA BRYOPHILUM, K. Schum. in Nachtr. Fl. Deutsch. Schutzg.Südsee, 393 (1905). 
Camps III to XI, 2500 to 8300 ft. 
Distrib. North-east New Guinea. 
ARGOSTEMMA CARSTENSENSE, Wernham, sp. nov. 
Herbu minima, + 10 cm. alta, subrepens; caulis glaber, foliosus. Folia ovalia, ad 
ca. 19 x 11 mm., nec valde inzequalia, brevissime acuminata, obtusiuscula, basi 
ssepius obliqua, supra nigricantia, sparse puberula, subtus albide-discoloria, in 
costa centrali, ut petiolus 3:5 mm. longus, puberula, aliter glabra; stipule sub- 
orbiculares, subglabre. Flores solitarii, pseudo-axillares, in pedicellis +3 mm. 
longis. Calycis lobi lanceolati, subacuti, subglabri, 2-2:5 mm. longi. 
Camps I to III, 500 to 2500 ft. 
Distinet in the leaf-shape and colour, and in the very short pedicels. 
ARGOSTEMMA LINGUA-FELIS, Wernham, sp. nov. 
Herba simplex, ad ca. 15 cm. alta; caulis gracilis, glaber, foliosus. Folia lanceolata, 
acuminata, obtusa, quemque ad nodum duo, inzequalia, alterum ca. 14x 4.5 mm., 
alterum 6 x 2 mm., basi sæpius rotundata, utrinque pilis densis minute crys- 
tallinis rigidulis articulatis asperula, venis secundariis omnino occlusis, petiolo 
tenui sparse piloso 2-2:5 mm. longo; stipule late, rotundatze, retlexce, persistentes, 
dorso qua folia indute, intus glabre. Flores solitarii, terminales, pedicello 5-6 mm. 
longo ut ovarium hemispheericum 4 mm. longum densissime albido-hirsuto suffulti ; 
bracteole 2, minute, oblongse, obtusse, infra pedicelli medium affixe. Calycis 
lobi triangulari-ovati, subacuti, dorso pilosi, intus glabri, 3 mm. longi. 
Camp VI a, 3100 ft. 
Recognisable by the peculiar indumentum of the leaves, and the broad stipules. Of 
the pair at a node, one is about half the size of the other. 
ARGOSTEMMA GESNERELLA, Wernham, sp. nov. 
Herba parva, debilis, glabra. Folia pauca, membranacea, valde insequalia, majora 
lanceolata, longe acuminata, basi rotundata, ca. 5°5 x 1:5 em., venis secundariis 
utrinque ca. 6-8, petiolo 8-4 mm. longo; minora linearia v. anguste lanceolata, 
ca. 8X 2 mm.; stipule a basi triangulari longe setaceo-acuminate, 3 mm. long®. 
Flores glabri, in cymas subcapitatas ca. 1 cm. diam. dispositi, pedunculo flaccido — 
complanato 1-L:8 em. longo; bracteæ lineari-lanceolate, 8-10 mm. long:e, apice 
subacute, sspe dentibus 1-2 marginalibus. Calyx 5-dentatus. Corolle tubus 
. Cylindricus, ca. 4 mm. longus, lobis oblongis obtusis 3 mm. longis. 
. Camps III to VIII, 2500 to 000 ft. | 
| Recognisable by the complete glabrousness, minute flowers, and toothed bracts. 
