70 



sori are from 4 to 6 in number and do not so nearly cover the 

 whole area of the pinnule as in Dryopteris Lloydii. The pits left 



1 





1 



1 



• )> 1 Jii, i 





■ 



wmm 



1 



Fig. 4. Dryopteris Lloydii, 

 sori, X 18. 



Fig. 5. Eryopleris Lloydii, 

 indusium, X i8. 



by the sporangia are similar in character in the two species, 

 though not quite so numerous in the Greenland form. 



SHORTER NOTES 



The Heliaxthoid genus Toxalaxthus. — Among the plants 

 gathered by Dr. Purpus in 1913 in the state of Chiapas, Mexico, 

 was a very interesting new Helianthoid genus, described by 

 Mr. T. S. Brandegee* as Tonalanthus. The single species, 

 T. aiirantiaciis Brandegee, was collected on the Sierra de Tonala. 

 The rather brief Latin description, while adequate for recognition, 

 does not readily enable one to fully appreciate the characters of 

 the plant, so I offer some figures and notes, based on fragments 

 of the type lot, very kindly communicated by Mr. Brandegee. 

 Involiicral bracts, at least the outer ones, about 15 mm. long and 



4.5 broad, parallel sided except apically; coriaceous, the basal 



half whitish, the apical reddish-brown; about a dozen parallel 



veins; dorsal surface of apical part furfuraceous, and margin 



very briefly, inconspicuously ciliate (fig. G). 

 Receptacle, "long, like Lepachys" (Brandegee litt.). 

 Disc bracts elongate, hyaline, divided apically into about three 



slender, sharp-pointed lobes, one much longer than the others 



(fig. C). 

 Achenes narrow, flattened, the surface, except the margins, 



strongly furfuraceous. Achenes about 4 mm. long, the pappus 



scales distinctly, but not greatly, longer (fig. A). 



*Univ. Calif. Publ., Botany, VI, 75, Aug. 3, 1914. 



