130 CARYOPHYIvIvACEAE 



2. Sagina apetala Ard. Smai^l-FLOWERED Pearlwort. (Man. p. 

 399 ; I. F. f. 1493. ) In dry soil in woods and fields, Mass. to N. J. and 

 Pa. Native of Eu. — Pennsylvania: Lancaster; Bucks. 



3. Sagina decumbens (Ell.) T. & G. Decumbent Peari^wort. 

 (Man. p. 399; I. F.y^ ^49^-) In dry soil, eastern Mass. to 111., south to 

 Fla., Mo. and La. — Pennsylvania : Philadelphia. 



10. ARENARIA L. 



Capsule openings by twice as many valves as there are styles. 



I. A. serpyllifolia. 

 Capsule opening by as many valves as there are styles. 



Sepals acuminate : leaves rigid, subulate. 2. A. yiichauxii. 



Sepals obtuse : leaves herbaceous or fleshy. 3. A. Groenlandica. 



1. Arenaria serpyllifolia L. Thyme-lEaved Sandwort. (Man. p. 

 400 ; I. F. f. 1499 ) In dry or rocky places, throughout eastern N. Am., 

 extending across the continent. Nat. from Eu. — Pennsylvania : Mon- 

 roe ; North.ampton ; Bucks; Montgomery; Philadelphia; Dela- 

 ware ; Chester ; Lancaster; Fr.anklin ; Huntingdon ; Columbia ; 

 Allegheny. 



2. Arenaria Michauxii (Fenzl.) Hook. f. Rock Sandwort. (Man. 

 p. 401 ; I. F. yl J'JoO. ) In dry, rocky places, Ont. and Vt. to Va., west 

 to Wis. and Mo. — Pennsylvania: Northampton; Bucks; Montgom- 

 ery ; Chester ; Lancaster. 



3. Arenaria Groenlandica (Retz. ) Spreng. Mountain Sandwort 

 OR StarworT. (Man. p. 401 ; I. F. /. /J09.) On dry rocks, Lab. and 

 Greenland to N. Y., Conn., the mountains of southern N. Y. and Pa., 

 and on the higher Alleghanies of Va. and N. C. — Pennsylvania : 



Monroe. 



11. MOEHRINGIA L. 



1. Moehringia lateriflora (L. ) Fcnzl. Blunt-leaved Sandwort. 

 (Man. p. 402; I. F. /. 1310.) In moist places, N. S. to Alaska, N. Y. 

 and N. J. to Mo., extending to the Rocky Mts. of Utah. Also in Ore. 

 and B. C. and Eu. and A.sia. — Pennsylvaiiia : Monroe ; Susquehanna ; 

 Tioga ; Lancaster ; Bl.air ; Erie, Presque Isle ; Somerset ; Ches- 

 ter; Allegheny. 



12. HOLOSTEUM L. 



1. Holosteum umbellatum L. Jagged Chickweed. (Man. p. 39S ; 

 I. F. y". 1492.) Fields, roadsides and waste places, Pa., Del. and Ga. 

 Native of Eu. and Asia. — Pennsylvania : Lancaster. 



13. SPERGULA L- 

 1. Spergula arvensis L. Corn Spurry. (Man. p. 402 ; I. F. /. 

 ■^J^j • ) IQ fields and waste places, eastern Canada and the Eastern and 

 Middle States. Adv. or nat. from Eu. — PeJinsylvania : Wayne ; Mont- 

 gomery ; Philadelphi.a. 



14. TISSA Adans. 

 1. Tissa rubra (L. ) Britton. Sand Spurry. (Man. p. 403; I. F.y. 

 IJ16.) In waste places and along roadsides, or sometimes maritime, N. 



