122 BOTANICAL GAZETTE [august 



The type material of A, fallax was collected in the same 

 locality as that of A. arnoglossa ambigeiis. There are six sheets 

 labeled A, fallax in the herbarium of Professor Greene. On 

 three of the sheets the plants are without ciliate hairs, while on 

 the other specimens these are present. Only two of the four 

 specimens of pistillate plants have attenuate inner bracts, and in 

 only one of these are they setaceously pointed. One of these 

 specimens with inner attenuate bracts has some purple hairs 

 about the inflorescence. 



There is thus a very evident gradation of A, arnoglossa amln- 

 gens into A. fallax, even in the original material. A careful 

 study of a larger series of specimens shows that the two cannot 

 be separated, being simply forms of one species. I have recently 

 learned through a communication from Mr. Fernald that further 

 observation in the field has led him to the same conclusion, and 



r 



Dr. Britton s also is inclined toward this belief. 



AxTENNARiA PLAN4AGii\i FOLIA (L.) Rich, in Hook. Fl. Bor. 

 Am. I : 330. 1837. — Gnaphalium plantaginifolhim L. Sp. PI. 850. 



1753- G- pla?itagi?iea L. Syst. Veg. Ed. 12. 2 : 545- ^7^7- 

 A. plantagiytea (L.) R. Br., Trans. Linn. Soc. 12: 123. 1818. A. 

 decipiens Greene, Pittonia 3 : 278. 1898. — A. nemoralis Greene, 

 Pittonia4: 41. 1899. This is the low, plantain-leaved species, 

 having small heads and foliage persistently arachnoid on the 

 upper surface. It is closely allied to A. ambigens and grades 

 into it. It is a comparatively glandless plant, tKe flowering 

 stems and the leaves being rarely at all glandular, and in no 

 specimens have I detected any ciliate hairs. The basal leaves 

 vary from round obovate to ovate or narrowly elliptic, and the 

 petiole is often much elongated, especially in the forms with 

 narrower leaves. The bracts of the pistillate involucres are 

 generally petaloid and obtuse or obtusish, but not infrequently 

 somewhat scarious and acute or acuminate in the inner. In the 

 staminate involucres the whitish tips are ov^al, ovate, or oblong, 

 and vary in different plants as to size and number. The pappus 

 bristles in the staminate flowers though generally very narrow 



5 Manual, p. 796. 



