268 
Lepidium didymum, L. Mant; 92 (1 767). Lepidium Anglicum, 
Huds., Fl. Angl. Ed. 2. 280 (1778). Senebiera didyma, Pers. 
Syn. ii. 185 (1807). 
2. CORONOPUS CoroNopus, (L). Cochlearia Coronopus, L. 
Sp., Pl. 648 (1753). Nasturtium verrucarium, Gars. Fig. Pl. t. 
402 (1767), fide DC. = Senebicra Coronopus, Poir. in Lam. 
Encycl. vii. 76 (1806). 
Linnaeus employed the generic name in the first edition of 
his Systema, (1835), but that is a mere list of genera. 
POMBALIA, Vandelli Fasc. Pl. 7 (1 77 t). 
This long antedates Jonidium as a generic name, for the latter 
was not published until 1803 (Vent. Hort. Malm. 27, t. 27): 
Pombalia is based on the South American plant commonly 
known as /onidium Ipecacuanhe which Vandelli described as 
Pombalia [pecacuanhe, giving a very good figure of it. There 
seems no good reason, then, for not using the older name. 
As to related genera, Sodea, Spreng, as also older than lonidium, 
dating from 1800, and was thought by Dr. Gray to be distinct, 
although united with Jonxédiwm by Bentham and Hooker. Hy- 
banthus, Jacq. Enum. Carib. 2 (1760) is the oldest named of the 
group, based upon the spiny plants of the West Indies, and 
Baillon unites them all under this name. But if we follow Dr. 
Gray in keeping up Hydanthus, (Bot. Gaz. xi. 293), then the 
next oldest name is Pombalia. 
Silene Caroliniana, Walt. Fl. Car. 142 (1788). 
Silene Pennsylvanica, Michx. F\. Bor. Am. i. 272 ( 1803). 
There is a specinen of this plant in Walter’s Herbarium, 
marked “ Silene an Virginica,” evidently a type of his description, 
which fits it exactly. In the Linnzan Herbarium there is also a 
specimen of it marked Virginica, by Linnzus, but pinned fast 
to the sheet is another bearing a good specimen marked only 
‘K,” indicating that it was received from Kalm, of the S. Vir- 
_ ginica of the description in Species Plantarum, 419. Linnzeus 
evidently did not distinguish the two species, 
CERASTIUM ERECTUM (L). 
Sagina erecta, L. Sp. Pl. 128 (1753). 
Cerastium quaternellum, Fenzl, Verbr. Alsin. syn. table 
p. 18 (1833). | . 
