1908] Robinson,— Notes on Vascular Plants 67 
In his paper on the North American Species of Ilysanthes, Bull. 
Torr. Bot. Club, xxiii. 296 et seq. (1896), Dr. J. К. Small treats plant 
II as S. gratioloides (L.) Benth. and makes for plant I a new combi- 
nation J. attenuata (Muhl.) Small, regarding it identical with Lindernia 
attenuata Muhl. Cat. 59 (1813). 
Some years later Dr. J. H. Barnhart, Bull. 'Torr. Bot. Club, xxvi. 
376 (1899), calls attention to the fact that the name I. gratioloides (L.) 
Benth., founded upon Capraria gratioloides L. Sp. Pl. ed. 2, ii. 876 
(1763), must give place to I. dubia (L.) Barnhart, founded upon the 
earlier and identical Gratiola dubia L. Sp. Pl. 1. 17 (1753). It is to 
be noticed that subsequent writers, e. g. Britton, Man. 830 (1901), have 
assumed that Dr. Barnhart as well as Dr. Small regarded the Linnaean 
species (founded upon Clayton's no. 164 collected in Virginia) as being 
the small-leaved long-pediceled form which we have called plant II. 
However, the description which Gronovius himself gave of this plant 
of Clayton's, —see Gronovius, Fl. Virg. 73, 129 (1739), — contains 
the significant words pedunculis solitariis unifloris longitudine foliorum, 
an expression strongly pointing to its identity not with plant II but 
with plant I. To make sure of this identity the writer applied to Mr. 
E. G. Baker of the British Museum of Natural History to examine 
the still extant specimen of Clayton. This he most kindly did and 
sent a tracing of it to the Gray Herbarium showing conclusively its 
identity with the larger-leaved relatively shorter-pediceled form, which 
Dr. Small has called J. attenuata. 
In the light of this new information the two species in question 
would seem to require the following nomenclatorial treatment. 
Т. I pusu (L.) Barnhart, Bull. Torr. Bot. Club, xxvi. 376 (1899), 
as to actual Linnaean type. Gratiola dubia L. Sp. Pl. i. 17 (1753). 
Capraria gratioloides L. Sp. Pl. ed. 2, ii. 876 (1763). Lindernia atten- 
uata Muhl. Cat. 59 (1813). Gratiola attenuata Spreng. Syst. 1. 39 
(1825). Т. gratioloides Benth. in DC. Prodr. x. 419 (1846). TI. 
riparia of many auth., at least in part, probably not of Raf. I. grati- 
oloides, var. curtipedicellata Bush, Bull. Torr. Bot. Club, xxi. 494 
(1894). I. attenuata Small, Bull. Torr. Bot. Club, xxiii. 297 (1896). 
II. I. anagallidea (Michx.), n. comb. Gratiola anagallidea 
Michx. Fl. Bor. Am. i. 6 (1803). Lindernia dilatata anagallidea 
Muhl. Cat. 59 (1813). L. pyxidaria Pursh, Fl. Am. Sept. 419 (1814). 
? I. riparia Raf. Ann. Nat. 13 (1820). I. dubia of auth., not of 
Barnhart as to the Linnaean type. 
