FLORA OF WASHINGTON AND VICINITY. 95 



tEpigaea repens, L. Trailing Arbutus. 



Functionally dioecious, the male flowers larger than the female. [See American 

 Naturalist, March, 1880, j). 198.] Middle of March to middle of April ; fruit, last of 

 May. 



tGaultheria procumbens, L. Wintergreen. Checkerberry. 



Kidge above Blagden's Mill ; rare. First week in July; fruit persistent through 

 the winter. 



t Andromeda Mariana, L. Stagger-bush. 

 Middle of May to middle of June. 



t Andromeda ligustrina, Muhl. Lyon's Andromeda. 

 Second to fourth week in June. 



tLeucothoe racemosa, Gray. 



The pedicels which nod in the flower become horizontal in the fruit on opposite 

 sides of the rachis, rendering the raceme flat and distichous. Last of May or first 

 of June. 



tKalmia latifolia, L. Mountain Laurel. Calico-bush. 

 First half of June. 



Kalmia angustifolia, L. Sheep-Laurel, Lambkill. 



Found only in the northeast section. Last of May or first half of June. 



t Rhododendron viscosum, Torr. \_Azalea viscosttfLi.l. Clammy Azalea. White 

 Swamp-Honeysuckle. 

 June. 



Rhododendron viscosum, Torr., var. glaucum. Gray. lAzalea viscosa, L., var. f/lauca, 

 Gray.] 



Terra Cotta Swamp; Agricultural College, Md. Last week in May; earlier than 

 the preceding or the following. 



Rhododendron viscosum, Torr., var. nitidum. Gray. \_Azalea viscosa, L., var. nitida, 

 Gray. ] Terra Cotta Swamp ; Bladensburg. June. 



t Rhododendron nudiflorum, Torr. \_A2alea nudiJiora,lj.'\. Purple Azalea. Pinx- 



TER-FLOWER. 



Second or third week in May. 



t Rhododendron maximum, L. Great Laurel'. Eose Bay. 



First Eavine below Chain Bridge, Va. Last of June or first of July. 



tChimaphila umbeUata, Nutt. Prince's Pine. Pipsissewa. 

 Last week In June. 



tChimaphila maculata, Pursli. Spotted Wintergreen. 

 First week in July. One week later than the last. 



Pyrola secunda, L. 



Pine woods; not common. Middle of June. 



Pyrola chlorantha, Swartz. 



Pine woods ; rather rare. Last of May or first of June. 



Pyrola elliptica, Nutt. Shin-leaf. 

 Carroll Estate. Last week in June. 



