502 MR. SPENCER LE M. MOORE—PHANEROGAMIC BOTANY 
usual in Aroidez, by latex-tubes. At intervals round the stem are seen masses of 
sclerenchyme, each mass upon the outer side of a peripheral vascular bundle, and near 
them run other latex-tubes. The epidermal cells contain resin. 
A circle of vascular bundles immersed in deiicate parenchyme is found at the centre 
of the synandrium (fig. 6); outside this a considerable part of the tissue consists of 
resin-sacs, with scattered sclerenchyme elements. The latter are spindle-shaped and 
contain each a bundle of raphides, and inasmuch as they appear to be in small cavities of 
the surrounding tissue, they are probably of the nature of intercellular hairs. I find 
it impossible, however, to speak decidedly on this point, as the supposed cavities may 
really be the effect of drying.  Latex-tubes accompany the vascular bundles. All the 
largest synandria have eight anther-cells, which are of normal structure. Many of the 
pollen-grains soon become effete, and in this state may sometimes be seen closely applied 
to a fertile grain (fig. 7); the fact that the effete grains are at length completely 
emptied of their fovilla leads one to suspect that they are made use of by their successful 
fellows, but in order to decide this point properly preserved materia! is necessary. 
PHILODENDRON, sp. Foliorum lamina latissime reniformi-cordata, margine repanda, vix 
lobata Reliqua desunt. 
Hab. Corumbá. (N. 977.) 
Remarkable for the extremely wide cordation of the leaf. I have seen nothing like 
this in our herbaria, and it is probably a new species. 
TACCARUM WEDDELLIANUM ?, Brongn. ex Schott, Prod. Aroid. p. 336. 
Hab. Corumbá. (N. 977 a.) 
Folia tantummodo suppetebant. [Matto Grosso. | 
MONSTERA BROWNII (sp. nov.); petiolorum vaginis latis, fere geniculum attingentibus ; 
lamina a basi rotundatà sursum angustatá, ovata acutá vel breviter acuminatá, nunc 
foraminibus carente, nunc juxta costam mediam pauciforaminatá foraminibus inter 
costas secundarias solitariis ; costis secundariis utrinque 9-12 costee mediz arcuatim 
insertis; pedunculo quam spatha longiore; spathá crassá, brevi, late ovatà obtusa ; 
spadice cylindrica, satis incrassatá, spathze zequilongà; ovario stylo truncato concavo 
coronato; baccis compresso-ovoideis, monospermis, albis. 
Hab. Crescit in sylva primeevá juxta Santa Cruz, mens. Sept. florens. (N. 351.) 
Caulis scandens, 2:0 cm. diam., radices bruneas copiose emittens, Foliorum petioli 
ultra 30:0 em. long. Vaginze explanate 2:0 em. lat.; petiolus inter vaginam et 
geniculum 1:0-4-0 em. long.; geniculus 1:0 cm. lat. Lamina ad 37:0 em. long., 
19:0 em. lat. ; foramina anguste elliptica, ad 3:5 cm. long.  Pedunculus ad 
16:0 cm. long., vix 0'1 cm. diam. Spatha 7:0-8:0 em. long., explanata 5°5 cm. 
lat. Spadix ad 8'0 em. long. 2:5 cm. crass., prorsus alba.  Staminum filamenta 
spathulata, 0:35-0:45 cm. long., 0-1 cm. lat. Ovarium lateraliter compressum 0:3 cm. 
long. Stylus 0:25 cm. diam. Baccze 0:65 cm. long., 0:55 em. lat., stylo persistente 
0:3 cm. long. instructe. Semina oblique subreniformia, lateraliter compressa, 
marginibus obtusis, 0°5 cm. long., 0:75 cm. lat. 
