153. 
Aralia spinosa L. Hercules’ Club 
Java Farm. Principal station on north side of Fox Point Road, 
near base of peninsula and head of Fox Creek estuary. Hectare 3556. 
Abundant in understory. Canopy of Quercus velutina, Quercus alba, 
Nyssa sylvatica, and Pinus virginiana. 
Also observed in Hectares 3415, 3530, and 3554. Scattered 
infrequently under a variety of hardwood canopies. 
Ivy Neck. Infrequent in forest on lower Scaffold Peninsula. 
Canopy of mixed hardwoods. Higman 395. 
Hedera 
Hedera helix L. English Ivy 
Java Farm. Principal station north of Smithsonian property, on 
north-facing slope above stream, near road to pier. Hectare 2599. 
Canopy of mixed hardwoods; understory of Ilex opaca. Also on north 
bank of Fox Point. Hectare 3558. Canopy of Quercus prinus. Higman 1239. 
UMBELLIFERAE 
(From Dayton, 1942) 
1. Leaves without blades, reduced to hollow, linear, 
cylindrical, septate petioles. Expected (Lilaeopsis). 
1. Leaves with blades well-developed. 
2. Leaves simple (only the basal ones in Zizia). 
3. Stems creeping, rooting at the nodes............ Hydrocotyle 
3. Stems erect. Expected (Eryngium, Zizia). 
2, Leaves compound. 
4, Leaves, or most of them, palmately compound. 
5. Umbellets globose; fruit burlike, with 
hooked shir Stlles wey. <jeyef vopel'e eye) crsysreye yevslenejeysveyerdore's SANACUIA 
5. Umbellets not globose; fruit not burlike 
nor bristly. 
6. Umbels conspicuously irregular; flowers 
white; calyx teeth and involucels absent; 
fruit narrowly oblong, bony, often curved. Cryptotaenia 
