Geology and Botany. | 393 
at Washington, so that it may be in the hands of all our casis, 
to oo > will be a seasonable and considerable hel Ae Ge’ 
SrRENo Watson: Contributions to American Botan ny. Ad. 
iteact nat Proceedings of the American Academy of Arts and 
Sciences, vol. xviii, issued August 15, 1883).—A year ago, in the 
seventeenth volume of the American Academy’ s Proceedings, Mr. 
tions, half of which was occupied with the determination of the 
Polypetale of Dr. Edward Palmer’s collection in northern Mexico 
and the adjacent part of Texas. This account is completed in the 
paper now before us, of which it —— about one hundred 
pages. The new Co ompositee are enumerated, but acs characters oe 
are given in a later-published paper by pete r hand, her 
oo, - are a goodly number of new species, some of perc . 
intere ae 
Diphelodes — and O. cardiophylla Gray, published in 
_Hemsi. ‘Biol. Centr. Am., are certainly very remarkable, as repre- 
and sometimes plane wings of the nutlets; so that they - ‘ : 
Sealy es seem to belong to oo m rather than to fe, = 
wracaryum, 
= ag Net tisqguama Engel a pabtiahed | in the Gariener’ rs 
icle with wrong foliage (that” of P. Ayaouhutte e) is here correctly : 
characteri zed. : 
_ Spiranthes of Richard i is —, on page 159 to Sperone, 
ae This, although six times repeated, is gone : accidental, and © 
by oi means i — as a correctio n of Kichard’s latinizath 
. ine it genera of Litiaoee f vie Vong ae first of the pe ube tri 
— Anthericece, the second verging ae the —— 
~ Tradescantia lesan eh one ‘bel 
Pade in Eee nor tthe er } 9 
on, é 
Soo se Sa 
nized 
