492 TRANS. OF THE ACAD. OF SCIENCE. 
Pag. 448. J. stygius also on the north shore of Lake Su- 
perior, O. B. Wheeler ; it seems rare everywhere, so that I 
have not yet been able to obtain it in sufficient quantity for 
the Herb. norm. 
J. Vaseyi; while I was deploring the destruction of Dr. 
Vasey’s original locality, Rev. Mr. Holzer and Dr. Bigelow 
discovered this species in abundance in damp open woods on 
both sides of the river near Detroit, growing together with 
J. Greenti. Dr. Bigelow’s fine specimens are distributed in 
Herb. norm. 17. Many of them are 2} feet high. . 
Pag. 449. J. Greenii; Dr. Bigelow’s Detroit specimens, 
Hb. n. 19, are 2-21 feet high, taller and’ stouter than those 
found on the coast, Massachusetts, 27. Mann, Hb. n. 18, 
Maine, E£. Tuckerman.—Both species hold their own per- 
fectly well, and can always be readily distinguished by the 
characters given above; J. Vaseyi is also a much more slen- 
der plant and flowers earlier, maturing its fruit, near Detroit, 
in the beginning of July, when the other is just in flower. 
Pag. 450. J. tenuis; a form with long spathes, most spe- 
cimens tall, is Hb. n. 20 from Pennsylvania, Porter ; another, 
even taller, with the flowers often one-sided, is 21, from IIli- 
nois, Hall ; 22 is the var. congestus, from California, Avellogg, 
unfortunately in too few specimens; 23 is var. secundus, from 
Pennsylyania, Porter. 
J. dichotomus has been found as far north as Delaware and 
New Jersey, Leidy, Commons, Parker, Hb. n. 24, and others. 
Mr. Ravenel sends from South Carolina a taller form, Hb. n. 
25, and a smaller, few-flowered one, 26. 
Pag. 451. J. Gerardi, Massachusetts, Mann, Hb. n. 27. 
J. bufonius, Hb. n. 28, is an erect form from the coast re- 
gion of California, Bolander.—Prof. E. Hilgard found on the 
sandy beach of Ship Island in the Mississippi Sound the var. 
fasciculiflorus with perfectly smooth seeds; specimens of 
the same sent by Lindheimer from Galveston show extremely 
slight marks, 
26. b. J. TRIFoRMIS, n. sp.: caule annuo brevissimo foli- 
oso ramuloso ; pedunculis capillaribus scapiformibus numero- 
sis (1-4 pollicaribus) folia brevia filiformia supra canaliculata 
apicem versus plana longe excedentibus; floribus paucis capi- 
tellatis vel singulis; sepalis lanceolato-subulatis <quilongis 
capsulam ovatam obtusam mucronatam 2-3 locularem fere 
zequantibus; seminibus ovatis obtusis breviter apiculatis te- 
nuiter pauci-costatis et transverse lineolatis. 
Var. a. stylosus: planta major (2-4-pollicaris); capitulis 
3-5-floris ; sepalis stamina et capsulam longius mucronatam 
paulo excedentibus ; antheris longe-linearibus filamento plus 
quam duplo longioribus; stylo ovario ovato pluries longiore 
exserto, stigmatibus elongatis. 
Var. 3. brachystylus: planta minor (1-2-pollicaris) ; flori- 
