214 PROCEEDINGS OF THE AMERICAN ACADEMY 



longo, bracteis omnibus ovatis oblongisve obtusiusculis brunneis vel 

 masculis internis apice albo ; setis pappi fl. masc. sursum parum bar- 

 bellulatis liaud cluvellatis. — A. alpina? var. stenophylla, Gray, iu 

 Wilkes Exped. 1. c. — Spipen River, Wasbington Terr., Pickering 

 and Brackcnridge. Union Co., Oregon, on higb bills, Ciisick. 



Gnaphahum Wrightii. G. microceplialo peraffine ; ramis diffu- 

 sioribus ; foliis latioribus plerisque spatbulatis basi nunquam adnato- 

 productis ; iuvolucri bracteis griseo-albis obtusis, interioribus apicu- 

 lato-acutatis. — G. microcephalum. Gray, PI. Wright, i. & ii., non 

 Nutt. — Common from S. Arkansas and W. Texas to New Mexico. 

 Also no. 419 of Parry and Palmer's collection from San Luis Potosi, 

 Mexico, wliich has been referred to G. canescens, DC. ; but, from the 

 character, that species is better represented by no. 433i of the same 

 collection. 



Adenocaulon. To the remarks in Proc. Am. Acad. viii. 653, the 

 following correction and addition should be made. An attentive 

 examination of all the species shows that the basal auricles of the sa- 

 gittate anthers are manifestly produced into a slender acumination or 

 small tail, the adjacent ones connate. And the genus is so thoroughly 

 conj:;ruous with Carpesium, which is anomalous in the EulnuIecB, that 

 the two may well be associated in the Inuloid subtribe Adenocaiclece. 



MiCROPUS AMPHIBOLUS. M. Califomico proximus, differt floribus 

 focmineis 9-10 in receptaculo oblongo subimbricatis, bracteis fructiferis 

 tenuioribus (maturis chartaceis) parum latioribus, appeudice ovata 

 hyalina majore primum arete inflexa demura porrecta ; floribus sterili- 

 is pappo paucisetoso instructis. — California, no. 416 of Kellogg 

 / Harford's distribution ; and Walnut Creek near Martinez, Brewer, 

 1860-62. — I wish to call attention in California to this plant, which 

 has been confounded with Micropus Californicus and with some other 

 FilaginecB. Its characters are such as really to give some color to the 

 merging of Stylocline in Micropus, the female flowers, about ten in 

 number, being spirally inserted on a somewhat elevated tbougii hardly 

 columnar receptacle, the scarious hyaline apical appendage to the bract 

 (which all the species possess) being larger in proportion to the bract, 

 indeed almost of its length in anthesis, and then infiexed, afterwards 

 horizontal, and the almost mature fructiferous bracts comparatively 

 thin and soft, so that it approaches Psilocarplnis. Moreover the 

 few staminate flowers are subtended by linear deciduous paleoe, and 

 provided with a few pappus bristles. The organic apex of the ovary, 

 though lateral, is close to the summit. Transitional though it be, I 



