312 
CONTRIBUTIONS TO BOTANY. 
striatOj flavide farinoso-tomentoso, limbo sequilongo aut bre- 
viore, margini inserto : panicula axillari, fulvo tomentosa ; 
rachi petiolo crassiore et fere 2-plo longiore, compressa, 
striata, ramosa, basi longiuscule nuda ; ramis plerumque 
brevibus, aut solitariis vel 2-3 fasciculatis, alternatim pedi- 
cellatis et paueifloris; sepalis 6, interioribus ovatis, imo ro- 
tundatis et saccato-concavis, carnosulis, glabris, margine 
ciliatis. — In Peruvia : v. s. in herb. Mus. Brit, et De Boissier, 
Pillao, in lat. 10° S. (Ruiz et Pavon). 
There can be no doubt in regard to the authenticity of the 
above specimens of the typical species, as they are accom- 
panied hy a ticket in Pavon’s handwriting. The main branch 
is nearly ^ inch in diameter ; and its cross section shows the 
medullary rays usually seen in the family ; its bark is firm, 
rugose, and covered with numerous raised tubercles, which 
suggested the name of the genus : the foliaceous and floriferous 
branches are about 1^ line thick, and smooth; the internodes are 
2^ inches long; the leaves are 3^-3| inches long, 3-3^ inches 
broad, with a basal sinus 1 line deep; the petiole, continuous 
with the midrib, is palately inserted, and is 2^-2| inches 
long. The male flower has fifteen sepals, of which the nine 
more exterior, in three series, becoming gradually smaller, are 
bracteiform, membranaceous, pubescent, with ciliate margins, 
and the six others more internal, biserial, much larger, equal, 
oval, round and saccately concave at base, fleshy, glabrous, with 
ciliated margins, somewhat erecto-patent ; the six petals are 
squamiform, one-sixth the length of the inner sepals, somewhat 
orbicular, fleshy, fixed at the base of the filaments upon the 
gynajcium; the filaments are linear, compressed, swollen towards 
the summit, sigmoidly curved, as long as the inner sepals, and, 
as well as the, petals, rugosely punctated ; the oblong anther- 
cells are divaricate at base, and partly imbedded antically and 
laterally in the fleshy summit of the filament, which is prolonged 
and contracted at the apex into a long, curved, obtuse, mucro- 
nate point; each anther-cell is longitudinally divided by a 
diaphragm, from which the margins of its two valves break 
away. 
2. Chondrodendron cretosum, noh .-, — Botryopsis platyphylla,5enM. 
in Journ. Linn. Soc. v. Suppl. 2. 51 ; — Botryopsis Spruceana, 
Eichl. in Mart. FI. Bras. fasc. xxxviii. p. 199, tab. 48. f. 1; — 
rarnulis fuscis, teretibus, glabris, junioribus tomentosis, stria- 
tis ; foliis deltoideo-orbiculatis, imo cordatis, a medio sursum 
augustioribus, apice rotundatis, plus minusve emarginatis, 
calloso-mucronatis, marginibus crenulatis, e basi 5-nerviis, 
submembranaceis, supra glabris, opacis, in nervis tenerrimis 
