IX, C, 2 
Merrill: The Plants of Guam 
147 
OLDENLANDIA ALBIDO-PUNCTATA sp. nov. § Gonotheca. 
Species O. pteritae affinis, differt foliis plus minusve distincte 
albido-punctatis, inflorescentiis laxis, floribus haud subcapita- 
tis, calycibus vix vel obscurissime alatis, lobis distinctis, ovatis, 
acuminatis, circiter 2 mm longis. 
An erect, branched, glabrous, rather diffuse, annual plant 20 
to 30 cm high, the stems and branches slender, terete, or the 
ultimate branchlets obscurely 4-angled. Leaves narrowly oblong- 
obovate to oblong-elliptic, 1.5 to 2 cm long, 5 to 8 mm wide, 
rather coriaceous, apex usually rounded, sometimes obscurely 
apiculate, base acute, both surfaces usually distinctly puncticulate 
with white dots (apparently short cystoliths) the lateral nerves 
very slender, two or three pairs, ascending, obscure, some- 
times obsolete; petioles 2 mm long or less; stipules very broad, 
abruptly acuminate, the acumen 2 to 3 mm long, sometimes 
shortly trifid. Inflorescence, the whole upper part of the plant, 
a lax, leafy panicle, the ultimate branchlets (peduncles) bearing 
the flowers 2 to 5 cm long, the flowers solitary, in pairs, or in 
threes, the bracteoles lanceolate, acuminate, 1 to 2 mm long, 
the pedicels 1 to 2 mm long, in fruit up to 3 mm long. Calyx 
urceolate, in anthesis 2.5 mm long, the lobes 4, ovate, acuminate, 
prominently reticulate, 1.5 mm long, accrescent in fruit. 
Corolla-tube 1.5 mm long, villous within. Anthers 0.8 mm long. 
Capsules somewhat compressed, obovoid, about 4 mm long and 
wide, narrowed below into the stipe, very obscurely 4-winged, the 
wings, or mere lines, in pairs, lateral, sometimes entirely absent 
in the upper two-thirds, and evident only in the narrowed basal 
part of the capsule, the persistent calyx-lobes ovate, reticulate, 
acuminate, 2 mm long, divided nearly to the base of the calyx-rim. 
Seeds numerous, somewhat angled-globose, brown, pitted, 0.4 to 
0.5 mm in diameter. 
R. C. McGregor 375, Cabras Island, October, 1911. 
In appearance similar to Oldenlandia biflora Linn. (O. paniculata Linn.), 
but with much larger flowers and capsules. The structure of its flowers 
and capsules place it very near Oldenlandia pterita (Blume) Miq., but it 
seems to be specifically distinct in its smaller capsules, which are very 
obscurely or scarcely winged, and in its deeply cleft calyx-limb, the lobes 
extending nearly to the apex of the capsule. 
MUSSAENDA Linnaeus 
MUSSAENDA FRONDOSA Linn. Sp. PI. (1753) 177; Safford 330. 
Admitted on the authority of Safford. If correctly interpreted the 
species extends from India to Polynesia, but it seems probable that several 
closely allied but distinct species are involved in the present conception of 
Mussaenda frondosa. Guam material should be compared critically with 
Ceylon material, the type of the species being from Ceylon. 
