Part 3, 1916] CARDUACEAE : ANTHEMIDEAE 231 
Matricaria inodora maritima Wahlenb. Fl. Suec. 533. 1826. 
Matricaria inodora salina DC. Prodr. 6: 52. 1837. 
Tripleurospermum inodorum maritimum Schultz-Bip. Tanac. 33. 1844. 
Tripleurospermum mariltimum Koch, Syn. Fl. Germ. ed. 2. 1026. 1844. 
A leafy annual; stem often decumbent, 1-3 dm. high, striate, glabrous with spreading 
branches; leaves 2-4 cm. long, bipinnatifid with short, spreading, fleshy divisions; heads several, 
usually few, solitary at the ends of the branches; involucre saucer-shaped, 4 mm. high, 10-12 
mm. broad; receptacle convex to hemispheric, obtuse, solid; bracts in 2-3 subequal series, 
oblong, rounded at the apex, with light-brown scarious margins; ray-flowers 15-20; ligules 
white, 8-10 mm. long, 2 mm. wide; disk-corollas yellow, 2.5 mm. long; tube equaling the 
campanulate throat; lobes 5, lanceolate; achenes brown, with 3 corky ribs on the inner side, 
rugose on the back and between the ribs; pappus-crown distinctly dentate. 
TYPE LOCALITY: Sea-shores of northern Europe. 
DistrRiBuTIon: On ballast and along the coast, Massachusetts to Pennsylvania; Alabama; 
adventive from Europe. 
ILLustRaTion: Engl. Bot. pl. 979. 
3. Chamomilla Hookeri (Schultz-Bip.) Rydberg. 
Chrysanthemum grandiflorum Hook. in W. E. Parry, Jour. Second Voy. App. 398. 1825. Not 
C. grandiflorum Bouss. 1804. 
Pyrethrum inodorum Hook. Fl. Bor. Am. 1: 320,in part. 1833. 
Pyrethrum inodorum nanum Hook. Fl. Bor. Am. 1: 320. 1833. 
Matricaria inodora nana T. & G. Fl. N. Am. 2: 412. 1843. 
Tripleurospermum inodorum monocephalum Schultz-Bip. Tanac. 33. 1844. 
Tripleurospermum Hookeri Schultz-Bip. Bonplandia 1: 151. 1853. 
Matricaria grandiflora Britton, Mem. Torrey Club 5: 340. 1894. Not M. grandiflora Poir. 1813. 
Matricaria inodora grandiflora Ostenf. Skr. Vid.-Selsk. Christiania 1909 : 25. 1910. 
An annual; stem erect, 1-4 dm. high, angled and grooved, glabrous, simple or with a 
few ascending branches; leaves 3-7 cm. long, glabrous, bipinnatifid, with somewhat fleshy 
filiform divisions; heads solitary, or few; involucre saucer-shaped, 3-4 mm. high, 10-20 mm. 
broad; bracts in 2-3 subequal series, oblong, obtuse, with dark-brown or almost black scarious 
margins; ray-flowers 15-25; ligules white, 8-10 mm. long, 2-3 mm. wide; disk-corollas light- 
yellow, 2.5 mm. long; tube equaling the campanulate throat; lobes 5, lance-ovate; achenes 
brown, 2 mm. long, with 3 ribs on the inner side, muricate on the back and between the ribs; 
pappus-crown slightly lobed. 
TYPE LocaLity: York Factory [Manitoba]. 
DistTRIBuTION: Arctic coast from Greenland to Alaska; also arctic and subarctic Europe. 
Ittustrrations: Britt. & Brown, Ill. Fl. f. 3993; ed. 2. f. 45606. 
4. Chamomilla Chamomilla (L.) Rydberg. 
Matricaria Chamomilla L. Sp. Pl. 891. 1753. 
Matricaria suaveolens 1. Fl. Suec. ed. 2. 297. 1755. 
Leucanthemum Chamaemelum Lam. Fl. Fr. 2: 139. 1778. 
Matricaria patens Gilib. Fl. Lithuan. 220. 1782. 
Chamomilla patens Gilib. Exerc. Phyt. 178. 1792. 
Chrysanthemum Chamomilla Bernh. Syst. Verz. Erf. 145. 1800. 
Chamomilla vulgaris S. F. Gray, Nat. Arr. Brit. Pl. 2: 454. 1821. 
Matricaria obliqua Dulac, Fl. Hautes-Pyr. 505. 1867. 
A leafy annual; stem 2-5 dm. high, grooved and angled, glabrous, branching; leaves 
4-6 cm. long, bipinnatifid into nearly filiform divisions, glabrous or nearly so; heads several 
or many, solitary at the ends of the branches, radiate; involucre saucer-shaped, or in age 
rotate, about 3 mm. high, 6-10 mm. broad; bracts in 2-3 subequal series, linear to oblong, 
obtuse or rounded at the apex, broadly scarious; receptacle conic, acute, hollow; ray-flowers 
15-20; ligules white, 5-8 mm. long, about 2 mm. wide, in age reflexed; style-branches short, 
truncate; disk-corollas about 2 mm. long; tube equaling the campanulate throat; lobes 5, 
ovate; anthers with ovate obtuse tips; achenes oblique, yellowish-white, with 5 slender ribs on 
the inner side, smooth on the back and between the ribs; crown of pappus usually small, 
entire. 
Type Locauity: Europe. 
Disrerurion: Greenland; Maine to New Jersey and Ohio; Texas and California; adventive 
- from Europe and the Orient. 
