366 
CONTRIBUTIONS TO BOTANY. 
portion of each free and slightly divaricated; the anther-cells 
are imbedded laterally, as in the preceding species. 
It is now fifteen years since I examined this plant, and then 
analyzed only a single flower, the drawings and details of which, 
as well as the parts themselves, are still preserved. There is a 
discrepancy between that analysis and the details published by 
Dr. Eichler, who attributes to its calyx thirty to thirty-six 
sepals : my drawing and memoranda show fifteen sepals, with 
the summits of the six more internal reflected horizontally, the 
rest becoming outwardly by degrees smaller, till they become 
one-fourth the length of the former, appearing like bracts. 
Fearing a mistake on my part, I applied to Prof. De Candolle, 
who very kindly sent me another flower of each species of De- 
tandra. A carefnl analysis has confirmed the accuracy of my 
previous results, as I find fifteen sepals in one of BlanchePs 
plants, and eighteen in the other. Dr. Eichler’s drawing is 
evidently taken from a terminal fragment of the plant, and 
agrees with the terminal portion of my drawing. That he had 
seen a complete specimen is proved by his description of the 
leaves, to which he attributes a length of only ^-1 inch, instead 
of 2| inches as they appear in my drawing : he therefore over- 
looked the important character of the peltate insertion of the 
petiole 2 lines within the border of the leaf. The habit of this 
plant is very different from that of his two other species of 
Si/chnosepalum, one of which I have seen : the inflorescence and 
organization of the flower are very dissimilar; for in Sychno- 
sepalum, in addition to the three monadelphous stamens, it has 
an outer whorl of three free stamens, and the anthers have quite 
another structure, to which I may add the leaves and their 
venation, which are of a very different eharacter. 
54. Syrrheonema. 
This genus was proposed by me for a climbing plant having 
roundish cordate leaves, with a supraaxillary inflorescence, 
consisting of from three to six short faseiculated peduncles 
bearing generally three sessile flowers, which are small, with 
six tomentose imbricated sepals, no petals, and three stamens 
united for half their length into a eentral column*, the free 
portions being nearly erect, fleshy, and semiterete, each having 
four distinct anther-lobes quadrately disposed and imbedded 
introrsely in their summits. There is some resemblance in this 
latter feature to the stamens of Jateorhiza •, but the analogy 
extends no further. 
* Hence the generic name, from cruppioi, conjluo', vripa,filamentum. 
