CONTRIBUTIONS TO BOTANY. 
185 
glabris, marginibus intus lanatis ; stigmate 3-fido. — In 
Peruvia: v. s. in herb, meo^ Prov. Chacbapoyas (Mathews). 
This is a distinct species, hitherto undescribed, approaching 
the last in the want of stipules. Its leaves are 2|-3 inches 
long, 1^-1 1 inch broad, on a petiole inch long. The 
terminal panicle is inch long, pedicels 2-2| lines long; 
sepals 2 lines long ; stigma 3-fid. 
4. Tricuspidaria. 
There are many points of analogy between this genus and 
Aristotelian but it differs in its solitary and much larger 
flowers upon lengthened peduncles, in their being always 
hermaphrodite, in having a tubular calyx, more fleshy 
petals, longer stamens arranged uniserially on the summit of 
a tall cylindrical disk or gynophore that supports the ovary, 
in its long subulate style, its capsular fruit, and in its seeds. 
In Aristotelia the hilum is upon the middle of the ventral 
edge of the seed ; in Tricuspidaria it is at one extremity, the 
other being deficient of the horny appendage. The outer tunic 
is less fleshy, more friable, and easily separating when dry, 
leaving the chord of the raphe upon the second integument or 
bony shell, extending from one extremity to the other, where 
it is lost in the large truncated chalaza. There are two spe- 
cies, both natives of Chile, one of which I examined atten- 
tively, many years ago, in the living state. The following 
is an amended and more amplified generic character, founded 
upon my own observations. 
Tricuspidaria, R. & P. — Flores hermaphroditi. Calyx urceo- 
lato-tubulosus, submembranaceus, margine breviter sinuato- 
5-dentatus, demum irregulariter dirupto-lobatus et deciduus. 
Petala 5, eequalia, cuneato-oblonga, concava, imo subsac- 
cata, intus usque ad medium carinata, apice in denticulos 3 
acutos incisa, calyce 3-plo longiora, carnosa, imo disci in- 
serta, sestivatione e marginibus longitudinaliter late inflexis 
introplicato-valvata, decidua. Discus in forma gynophori 
alte cylindraceus, profunde 10-sulcatus, ovarium fulciens, 
persistens. Stamina 15, petalis ^quilonga, uniserialiter 
summo disci inserta, ovarium crebre circumstantia ; Jila- 
menta filiformia, compressa, pilosula, superne paulo divari- 
catim cuiwata ; antherce his dimidio breviores, lineares, 4- 
sulcat^, summo filamentorum geniculatim affixae, apice con- 
niventes, collateraliter 2-loculares, loculis vertice e poris 2 
confluentibus, brevissime 2-valvatim dehiscentes. Ovarium 
disco supei-positum, elongatum, apice conico-subcylindricum, 
3-4-sulcatum, 3-4-loculare : ovula in quovis loculo 12-16, 
2b2 
