Tiif. Flora of the Cayuga Lake Basin 201 



[S. Holostea L. Easter Bell. 

 ' Cemetery, University Ave., Ithaca, 1903 {H. S. Jackson) ; occasionally cultivated, 

 and probably not spontaneous in this locality.] 



4. S. media (L.) Cyrill. Common Chickweed. 



A weed of cultivated ground and waste places, in rich soil ; very common. Mar.- 

 Dec. 



Nearly throughout N. A. Naturalized from Eurasia. 



6. Cerastium L. 



a. Petals about 10 mm. long; sepals and leaves rather stiff, the leaves with fascicles 



of leaves in the axils ; perennials. 1. C. arvense 



a. Petals 7 mm. long or less ; sepals and leaves soft, the leaves oblong or oblong- 

 linear, without axillary fascicles; annuals. 

 b. Lower pedicels 4—14 mm. long; petals not exceeding the sepals; leaves short, 

 obtuse. 2. C. vulgatum 



b. Lower pedicels 15-50 mm. long; petals twice the length of the sepals; flowers 

 nodding; leaves longer and more acute. 3. C. nutans 



1. C. arvense L. 



Lawns and other grassy places ; rare. May. 



Corner of East and South Aves. and near Stone Hall, C. U. campus ; cemetery, 

 University Ave. (D. !) ; Chi Psi (Fiske) grounds (£>.). 



Native on rocky serpentine soils: Lab. to Alaska, southw. to Del., Pa., Ind., Minn., 

 Colo., and Calif., also along the mts. to Ga. The plant of lawns and fields is prob- 

 ably naturalized from Eu. 



2. C. vulgatum L. (C. viscosum of Cayuga Fl.) Mouse-ear Chickweed. 



A weed of roadsides, cultivated fields, and waste places; very common. May-Sept. 

 Nearly throughout N. A. Naturalized from Eu. 



3. C. nutans Raf. 



Rich bottom-land woods ; infrequent. May-June. 



Coy Glen (£>.) ; Negundo Woods; South Hill (D.) ; Renwick Farm (D.) ; Fall 

 Creek, near mill pond (D.) and near Beebe Lake (D. in C. U. Herb.) ; swampy woods 

 n. of Freeville (D.) ; lake shore ravines (D.) ; ravine near Elm Beach, Romulus. 



N. S. and Vt. to B. C, southw. to Fla., Tex., and Mex. ; infrequent on the Atlantic 

 Coastal Plain. A plant of the rich soils of the interior. 



7. Agrostemma L. 

 1. A. Githago L. (Lychnis Githago of Cayuga Fl.) Corn Cockle. 

 A weed in grainfields, more rarely in waste places ; frequent. June-Aug. 

 Widely distributed in N. A. Introduced from Eurasia. 



8. Lychnis (Tourn.) L. 



a. Plant white-woolly; petals purple; calyx teeth twisted. 1. L. Coronaria 



a. Plant green ; calyx teeth not twisted. 



b. Flowers scarlet, in a capitate cluster, perfect; leaves clasping by a broad base. 



2. L. chalccdonica 

 b. Flowers white, in an open cyme, dioecious ; leaves tapering at base. 



3. L. alba 

 1. L. Coronaria (L.) Desr. Mullein Pink. 



Roadsides ; rare. June-Aug. 



