XCV1 ADDENDA TO THE 



Porter. Abundant where it occurs ; probably indigenous ; flowering in May 

 and June, earlier than the others. (The remarks on p. 436 to !>< erased.) (Eu.) 

 P. 439. 



Saglttaria calyclna, Engelm. Pedicels of the two kinds of flowers 

 of equal length, the fruit-bearing ones recurved ; flowers polygamous, the sterile 

 ones with a few rudimentary pistils and numerous stamens, their filaments 

 smoothish, and about the length of the broadly ovate anthers, the fertile ones 

 with 7 to 12 stamens; style longer than the ovary and erect, hut horizontal on 

 the lunate or obovate narrowly-winged achcnium ; sepals orbicular, strictly ap- 

 prcssed to the head of fruit. Kennebunk, Maine, Ifr. Swan, growing under 

 water, with no blade to the leaves, the petioles stout, subulate. Haekensaek 

 marshes, New Jersey, C. F. Austin; mostly with a small and halberd-shaped 

 emersed blade to the leaves. Wilmington, Delaware, E. Tahmll; the blade 

 rudimentary, or oblong and entire, or halberd-form or sagittate, short, obtuse. 

 Athens, Illinois, E. Hall, with well-developed sagittate acute leaves. Probably 

 not uncommon. 



P. 448. 



SpirantheS grammea, Lindl. ? has been detected in New York and 

 New Jersey by C. F. A ust in, and some other species or forms are apparently con- 

 fused with S. cernua. They must be studied hereafter with fresh materials, and 

 identified with Lindley's various species. 

 P. 459. 



2*. Iris ciiprea, Pnrsh. Stem tall and slender; leaves linoar-sword- 

 shaped (' wide) ; flowers copper-colored, or dull yellow tinged with blue, the 

 tube longer than the ovary. Cairo, S. Illinois, growing with I. versicolor, Dr. 

 Vasey. Common in the Southern States. 



F. 461, 465, 472. 



The anthers are so attached to the filament as to be really extrarse in Medeola 

 (as ascertained by Prof. H. G. Clark), and in Lilium (as shown by Dr. Chap- 

 man), Hemcrocallis, &c. Other distinctions having also given way, it becomes 

 apparent that Smilaceaj and Melanthaceae will have to be merged in the -rcut 

 order Liliaceae. 



P. 497. 



10. EleocliariS COlllprCSSa, Sulliv. This is common in Illinois and 

 westward, in a taller form, with elongated and many-flowered spikes ('-!' 

 long) : the style is 2-cleft, the achenium well formed, smooth, or nearly so, with 

 a rather large tubercle ; and the hypogynous bristles generally present, shorter 

 than or surpassing the achenium, and retrorsely barbed. The species should 

 stand after No. 6. 



P. 498, 500. 



1*. ScirpllS pzmcifldrilS, Lightfnot Culms striatc-angled, 3'- 9' high , 

 the sheaths leafless ; spike ovate, chestnut-colored ; glumes nearly 2-ranked, 

 blunt, the lower and larger ones not equalling the uppermost ; bristles 3-6, re- 



