Census of Cultivated Indige?ious Plants. 



243 



V. congesta, Lindl. (Plectritis 

 congesta.) (Eng. 1826.) 

 Composite, Composite or Sun- 

 flower Family. 

 Achillea. About 100 species, of 

 which wc have 3. 

 A. asplenifolia (Eng. 1803), of 

 Diet. Gard., is probably a rose- 

 colored form of A. Millefolium 

 and is evidently not Ameri- 

 can. 



A. Millefolium, Linn. * Also 

 native to Europe, whence the 

 cultivated forms have proba- 

 bly come. 



A. Ptarmica, Linn. * Probably 

 introduced into cultivation 

 from Europe, where it is also 

 native. 



Actinella. 16 species in our region. 

 A. grandiflora, Torr. & Gray. 

 (Eng.) 



Actinomeris. 9 or 10 species; of 

 ours, 2. 



A. squarrosa, Nutt. (A. procera 

 of Diet. Gard.) (Eng. 1640 and 

 1766.) 



Ageratum. There are 3 species in 

 our region ; 16 in all. 

 A. corymbosum, Zuccagni. (A. 

 cselestinum.) * 

 Anaphalis. About 25 species ; we 

 have 1. „ 

 A. margaritacea, Benth. & Hook. 

 Gill. 1881. 

 Antennaria. There are a dozen 

 species in our region. 

 A. alpina, Gaertn. Gill. 1881. 

 A. dimorpha, Torr. & Gr. Gill. 

 1881. 



A. dioica, Gaertn. * 

 A. Geyeri, Gray. Gill. 1881. 

 A. racemosa, Hook. Gill. 1881. 

 Aplopappus. Species 60; in our 



region, 45. 

 A. lanuginosus, Gray. Hors. 



1889. 



A. spinulosus, DC. (Eng. 1874.) 

 Arnica. About 20 species ; 15 in 

 U. S. 



A. amplexicaulis, Nutt. Gill. 

 1881. 



A. Chamissonis, Less. (Eng.) 

 A. cordifolia, Hook. Gill. 1881. 

 A. foliosa, Nutt. Gill. 1881. 

 (Eng.) 



A. latifolia, Bong. Gill. 1881. 



Artemisia. Some ^00 are described, 

 of which 44 occur within our 

 limits. 



A. cana, Pursh. (Eng. 1800.) 



A. Canadensis, Michx. * 



A. frigida, Willd. Wool. 1883. 



A. Ludoviciana, Nutt. * 



A. Stelleriana, Bess. Manning, 

 about 1890. 



A. tridentata, Nutt. Gill. 1881. 

 Aster. An extensive genus, espe- 

 cially in America, 128 species 

 being native within our limits. 



A. acuminatus, Michx. * (Eng. 

 1806.) 



A. alpinus, Linn. * 



A. amethystinus, Nutt. (A. pilo- 

 sus.) (Eng. 1812.) 



A. Andersoni, Gray. Gill. 1881. 



A. Bigelovii, Gray. (A. Towns- 

 hendii.) * (Eng. 1878.) 



A canescens, Pursh. Gill. 1881. 

 (Eng. 1812.) 



A. Carolinianus, Walt. Gill. 1881. 



A. Chamissonis, Gray. Gill. 

 1881. 



A. Chapmani, Torr. & Gray. 



Wool. 1883. 

 A. concinnus, Willd. (Eng. 1800.) 

 A. concolor, Linn. Gill. 1881. 



(Eng. 1759.) 

 A.conspicuus, Lindl. Hors. 1889. 

 A. cordifolius, Linn. * (Eng. 



1759.) 



A. corymbosus, Aiton. Hors. 

 1889. 



A. Cusickii, Gray. Hors. 1889. 

 A. diffusus, Aiton* (Eng. 1777; 



1758 as A. pendulus. 

 A. Douglasii, Lindl. * (Eng.) 

 A. Drummondii, Lindl. * 

 A. dumosus, Linn.* (Eng. 1734.) 

 A. dumosus, Linn. var. albus. 



(Eng.) 



A. dumosus, var. violaceus. 

 (Eng.) 



A. elegans, Torr. & Gray. (Eng. 

 1790.) 



A. ericoides, Linn. * (Eng.1758.) 

 A. ericoides, var. Reevesii, Gray. 



(A. Reevesi.) (Eng.) 

 A. falcatus, Lindl. Gill. 1881. 

 A. f oliaceus, Lindl. (Eng. 1732. ) 

 A. grandiflorus, Linn. * (Eng, 



1720.) 



A. Herveyi, Gray. * Of very 

 recent introduction. 



