12 Dr. J. Anderson on the Anatomy of Sacculina. 
The chief characters of Hanburia are its campanulate corolla, 
monadelphous stamens, longitudinally arranged anthers, peltate 
stigma borne on an elongated style, solitary pendulous ovules, 
and setoso-echinate fruit bursting open when fully ripe, like that 
of Momordica. In its monadelphous stamens and setoso-echinate 
fruit it approaches Cyclanthera; but the corolla of that genus is 
hemispherical, the anthers are arranged transversely, the stigma 
is sessile, and the ovules are horizontal and indefinite. In its 
definite ovules and shape of the seed it exhibits some relationship 
to Fevillea; but the fruit of that genus does not burst open, 
nor is it covered with spines. In any new arrangement of the 
genera of Cucurbitacese, Hanburia will probable form the type of 
a distinct tribe. 
Hansuria, Seem., in ‘ Bonplandia,’ vol. vi. p. 298 (1858), 
et ‘Bonplandia,’ vol. vii. p. 2 (1859). 
Char. gen. emend.—Flores monoici. Mase. Calyx campanulatus, 
5-dentatus. Corolla campanulata, calyci adnatim inserta, 5-fida, lobis 
triangularibus acutis. Staminum columna elongata in discum pel- 
tatum orbicularem margine antheriferum desinens; anthere longi- 
tudinaliter adnate. Fem. Calyx tubo oblongo cum ovario con- 
nato, limbo 5-partito. Corolla maris. Ovarium inferum, 4-loculare, 
loculis 1-ovulatis. _Ovula pendula axi centrali adnata. Stylus elon- 
gatus. Stigma peltatum. Bacca ovata, pulposa, setoso-echinata, 
maturitate elastice irregulariter rupta. _ Semina pauca, plana, subor- 
biculata, margine incrassato cincta. 2mbryonis exalbuminosi coty- 
ledones foliacez. ...... Herba Mexicana, glabra, rhizomate peren- 
nante, caule 5-angulato, foliis longe petiolatis cordatis acuminatis 
integerrimis, cirrhis simplicibus spiraliter tortis, floribus axillaribus 
v. terminalibus pedunculatis albis, masculis racemosis, foemineis soli- 
tariis. 
Species unica :— 
Hanburia mexicana, Seem., in ‘ Bonplandia,’ vol. vi. p.293 (1858), 
et ‘ Bonplandia’ vol. vii. p. 2 (1859). 
Nomen vernaculum Mexicanum “ Chayotilla.”’ 
Prope Cordova, reipubl. Mexican. (W. Schaffner !). 
22 Canonbury Square, London, N. 
Nov. 21, 1861. 
eee 
I1I.—On the Anatomy of Sacculina, with a Description of the 
Species. By Joun Anprerson, M.D.* 
[Plate I.] 
‘THREE years ago, I drew the attention of this Society to the fact 
of the frequent occurrence of Sacculina and Peltogaster on some 
* Read before the Royal Physical Society of Edinburgh, Nov. 27, 1861 
