GREENMAN. — PHANEROGAMS. 483 



glabrous, reddish brown, conspicuously dotted with numerous whitish 

 lenticels ; the extreme branchlets covered with a hirsute 2)ubescence : 

 leaves scattered, elliptic-ovate or sometimes slightly obovate, 1.5 to 3 cm. 

 lonfif, 1 to 1.5 cm. broad, narrowed below into a short petiole, obtuse, the 

 upper portion more or less deeply crenate-dentate, occasionally sharply 

 toothed, entire toward the base, hispid above, spreading hirsute-pubescent 

 beneath, especially on the midrib and veins : inflorescence capitulate ; 

 heads small (after the corolla has fallen, about 5 mm. in diameter) : 

 peduncles, during anthesis, 1 cm. or less in length, covered with a spread- 

 ing hirsute pubescence : calyx 2 ram. long, 5-dentate ; teeth short, acute : 

 corolla 3 mm. long, nearly cylindrical with short recurved lobes, ex- 

 ternally glabrous, pubescent inside along the line of the filaments: 

 stamens included : style a little exserted. — Collected by E. W. Nelson 

 on Maria Madre Island of the Tres Marias group of islands, 3-25 May, 

 1897, no. 4296. 



Most nearly related to C. cana, Mart. & Gal., from which it is dis- 

 tinguished by the more spreading pubescence throughout, the more 

 coarsely dentate and shorter-petioled leaves, and further by the some- 

 what shorter peduncles. 



Specimens collected by Mr. Pringle on lava beds near Zapotlan, State 

 of Jalisco, 27 May, 1893, no. 4389, distributed as C cana, Mart. & Gal., 

 may be the same, although the pubescence on the young shoots, the 

 peduncle, and the calyx is sub-appressed. The leaves in Mr. Pringle's 

 plant are very much reduced, yet they have the spreading pubescence of 

 C. insularis rather than of C incana, so that it is difficult to say from the 

 single specimen at hand to what species it may be correctly referred. 

 Further material of Mr. Pringle's plant is necessary for positive de- 

 termination. 



CoRDiA SoNOR^, Rose, Contrib. U. S. Nat. Herb. i. 106. Speci- 

 mens collected by E, W. Nelson on Maria Madre Island, 3-25 May, 

 1897, no. 4207, agree in all essential characters with the type of the 

 above species. In Mr. Nelson's specimens, however, the leaves are 

 nearly glabrous above, the stamens are included and the style is slightly 

 exserted. As in the type specimen, collected by Palmer at Alaos in 

 1890, no. 376, the stamens are exserted and the style included, it is evi- 

 dent that the flowers of this species are dimorphic. 



Heliotropium axillare. Low, cespitose, covered throughout with 

 a stiff grayish white more or less closely appressed pubescence : stems 

 spreading from a rather deep ligneous root : branches irregularly flattened 

 or somewhat angled: leaves lanceolate or narrowly oblanceolate, 1 to 1.5 



