12 THE CIVIC.! FLORA. 



87, N. palustre, DC. var. hispidum, Gr. (H. and C.) 

 Common on marshes about Ithaca, Cayuga Marshes, Summit 



Marsli and about streams and pools elsewhere. 



88. *N. Armoracia, Pries. HORSE-RADISH. (H. and C.) 



Wet places and roadside ditches. May, June. 

 Thoroughly at home in the wet marshes at the Corner-of-the-Lake, 

 where it blooms freely. Also along the ditches south of town, and 

 the village streets. 



41. Ca mi-: 1. ix a, Crantz. 

 S9. C. sativa, Crantz. Fai.sk-ki.ax. (H. and C.) 



The University Campus, 1875, and 18S2. June. 

 Also near Aurora by the R. R. (Watkins, F. side of valley. 

 " Peun Yan, frequent." Sartw., in Herb.) 



42. Capskij.a, Vent. 



90. *C Bursa-pastoris, Moench. Shepherd's Purse. (H.andC.) 

 Everywhere. Mar-Dec. 



43. Lepidium, Linn. 



91. L. Virginicum, L. Pepper-grass. (H. and C.) 

 Dry waste grounds and roadsides ; common. June-Oct. 



92. L. ruderale, L. Pepper-grass. 



With the preceding and equally common ; distinguished from it 

 by its somewhat smaller pods, and darker green color. Occasionally 

 it has fasciated recemes. 



93. L. CAMPESTRE, L. 



Fields and yards. June, July. 



First noticed in Ithaca, 1873. Near the "Nook." South Hill. 

 Much more abundant near Union Springs and Aurora. 



raphaxis, Finn. 

 R. sativus, L. Radish. 



Occasional scape ; not uncommon on the lake shore. 



CAPPARIDACEiE. 



44. Polaxisia, Raf. 



94. * P. graveoleus, Raf. (H.andC.) 

 Gravelly banks ; near the ravines, and on the lake shore ; fre- 

 quent. July. 



CISTACE^E. 



45. HeliaxThemum. Tourn. 



95. H. Canadense, Michx. Frost-weed. 



Dry banks of ravines ; scarce. June 20-July. 



Near mouth of Buttermilk Glen. Coy Glen. Salmon Cr. ravine. 

 Valley Cemetery south of Ithaca. •'Junius," (Sartwel/, H. and 

 C); about Newton's ponds ! 



46. Lechea, Linn. 



96. L. thymifolia, Pursh. PlNWEED. 



Dry soil ; rare. Summer. North side Salmon Cr. ravine. 

 (L. Majoi, Michx. Avon and L. minor, Lam. P. Yan, "in 

 cemeteries," Sartwell, Hob. and C.) 



