CONTRIBUTIONS TO BOTANY. 
369 
upon pedicels so very short that they appear almost sessile ; all are 
thus closely approximated into a corymbulose and almost globular 
head on the summit of the peduncle : the sepals are pubescent 
on both sides ; the petals are of thinner texture, more separated, 
cuneately orbicular, with the laterally lobed margins inflected, as 
in Pijcnarrhena and Antitaxis, and embracing the filaments, as 
in the latter genus ; the filaments are thick and fleshy, flat in- 
side, very convex outside ; the anther, as in Anelasma, is sub- 
globose, formed of two collateral cells semiimmersed in the 
gibbous, incurved, clavated apex of the filament, and it opens 
horizontally by an introrse transverse suture into two gaping 
valves, each cell being rendered bilocellate by a semiseptum, as 
in Anelasma, Antitaxis, and Pijcnarrhena. The flower in its 
structure thus most resembles that of Anelasma, only provided 
with petals — but would still more resemble that of Antitaxis, 
were it not that the floral parts are there tetramerous. 
These differences are so many and so manifest that they 
justify the maintenance of Elissarrhena as a genus distinct 
from Anomospermum. I have remarked, under Sciadotenia 
{supra, pp. 340, 341) the analogy that exists in several points 
between it and Elissarrhena, both from Guiana. 
Elissarrhena, nob. — Flores dioici. Masc. Sepala 9, ternatim 
disposita, utrinque puberula, margine ciliata, quorum 3 ex- 
teriora bracteiformia, multo minora, 3 interiora intermediis 
2-plo majora, orbiculata, concava, sestivatione imbricata, de- 
mum expansa. Petala 6, sepalis triplo breviora, sublobato- 
orbicularia, lobis lateralibus inflexis, imo cuneata, subcar- 
nosa, glabra. Stamina 6, libera, sequalia, petalis opposita et 
unguibus affixa, illis fere duplo longiora ; filamenta imo tenuia, 
subincurva, sursum gradatim incrassata, intus plana, extus 
convexa, summo gibboso-clavata ; antherce subglobosae, in- 
trorsse, filamento semiimmersae, 2-lob8e, lobis rotundiusculis, 
connective angustissimo collateraliter adnatis, singulis rima 
horizontali bivalvatim hiantibus. 
Erutex Brasiliensis, scandens ; ramuli fistulosi, tomentosi ; folia 
majuscula, oblonga, e basi 5-nervia, nervis conspicuis extus 
ramosis et transversim venosis, submembranacea, textura flac- 
cida, glaberrima, longe petiolata : paniculse ^ supra-axillares, 
solitaries vel gemince, tomentosee, petiolo Vi-plo breviores ; pe- 
dunculus ebracteatus, apice breviter trichotomus, ramis iterum 
divisis, ramulis brevissimis, flores 3 fere sessiles gerentibus ; 
inflorescentia hinc corymbulosa aut fere capitata ; flores parvi, 
adpresse pubescentes. 
Elissarrhena longipes, nob., Ann. Nat. Hist. ser. 3. xiii. 124; huj. 
op. iii. 18; — Anomospermum grandifolium, Eichl. in Mart. FI. 
VOL. III. 3 B 
