303 NEW POLYNESIAN TUYMELE.^. 
M. MacTcali, Gray=:P. MacJcaii, Dumort. 
Pallavacinius, Gray, p. &U^Blyttia, Endl. Gen. 472-6 (1810). 
BiploUm, Dumort. (Mready (1814) used by E. Browa for a genus 
of Diosmeae^ 
P. Lyellii, Gray =^5. Lyellii, Endl. 
P. mbmiicus, Gray=5. Hibernica, EndL 
Gottsche considering the absence of tbe nerve in tbe frond of P. 
Hibernicus as of generic importance, established a new genus for tliis 
species and its allies in Kabenhorst's Hep. Europ. n. 121, under the 
name of Morclda, It is now consequently MorcJda Hibernica, Gottsche. 
KiccARDius, Gray, p, (!>%Z = Aneura, Duraort. Comment. Eot. p. 115 
(1823). Romeria, Raddi. (Employed by Medikus in 1793 for a 
genus oi Pa})averacece). 
K muUifidiis, Gray = J. muUi/ida, Dumort, 
R.pinguis, Gx^^ = A. pinguk, Dumort. 
R. pinnati/idus=A. pinnatifida, Nees. 
R, palmafus = J, pahnala, Nees. 
Cyathophora, Gray, p. 683 = Pmjsia (Corda in Opitz, Beitr. 
1828), Ts^ees in Lindley's Introd! ed. 2, p. 414 (1835). (De Candolle 
employed Ci/atliophora for a section of Wedelia in 1836, Prod, v. p. 538.) 
C angudifolia. Gray = P. commutata, Nees. 
THYMELE^ 
By Asa Gray, M.D. 
1, WlKSTR(EMiA roiundifoUa, Docmne (BapJine rotundifoUa, Linn. 
f.) ; foliis herbaceis brevissime petiolatis late ovalibus utrinque obtusis- 
simis vel rotundatis fere glabris, venis primariis adscendentibus te- 
nuibus reti venulamm vix fortioribus; ramulis cano-pubescentibns ; 
capitulis paucifloris brevissime pedunculatis ; floribus subsessilibus pi- 
losiusculis ; calycis lobis ovatis obtusis.— Tongatabu.— The hypogynous 
scales (in this 4 connate in pairs) and the ovary, whether smooth or 
haiiy at the apex, seem to furnish no good or available characters in 
this genus. The species are difficult to define. 
2. WiKSTRCEMiA/e^i^a {papJiue foetida, Linn. L—Capura purpu- 
rata, Linn. Mant.— ^, Forsteri, Decaisne,— /T. Indica, C. A. Meyer) ; 
