20 



DECANDRIA. 







Ledum. 



Ledum. 









416 latifolium. 



Labrador tea. 



native, 



June. 



h 



Rhodora. 



Rhodora. 









417 canadensis. 



Canadian. 



native. 



May. 



h 



Rhododendruim. Rose bay. 









418 ponticura. 



purple. 



Gibraltar. 



June. 



h 



419 maximum. 



Laurel. 



native. 



Ap. May. 



h 



Andromeda. 



Andromeda. 









420 paniculata. 



panicle flowered, 



native. 



June. 



h 



421 racemosa. 



cluster flowered. 



native. 



July, Aug. 



i? 



422 calyculata. 



small leaved. 



native. 



April. 



h 



Epigaea. 



Epigsea. 









423 repens. 



creeping. 



native. 



May. 



-h 



Gaultheria. 



Gaultheria. 









424 hispidula. 



creeping. 



native. 



July. 



\ 



425 procumbens. 



partridge berry. 



native. 



June. 



h 



Clethra. 



Clethra. 









426 alnifolia. 



alder leaved. 



native. 



July. Aug. 



h 



Pyrola. 



Winter Green. 









427 rotund ifolia. 



round leaved. 



native. 



June* 



% 



428 umbellata. 



umbelled. 



native. 



July. 



% 





Order II. DIGTNU. 







Hydrangea. 



Hydrangea. 









429 horteusis. 



changeable. 



China. 



June, Sept. 



h 



430 arborescens. 



tree. 



Virginia. 



Aug. 



h 



Saxifraga. 



Saxifrage. 









431 pensylvanica. 



pensylvanian. 



native. 



May. 



% 



432 crassifolia. 



thick leaved. 



Siberian Alps. April. 



% 



433 sarmentosa. 



creeping. 



China, Japan. June. 



% 



Tiarella. 



Tiarella. 









434 cordifolia. 



heart leaved. 



native. 



June. 



% 



Mitella. 



Mitella. 









435 diphylla. 



two leaved. 



native. 



May. 



X 



Scleranthus. 



Knawel. 









436 annuus. 



annual. 



naturalized. x\ug. 



o 



Saponaria. 



Soap wort. 









437 officinalis. 



ofhcinal. 



Europe. 



July. 



% 



438 Vaccaria. 



annual. 



Europe. 



July. 







