188. 
3. Stem prostrate-trailing; leaves evergreen; 
flowers paired, their ovaries united; fruit 
a berry. (Also, flowers white; leaves 
round—ovates, DELETES) GEM) ssicr ols veciels oie ccsieele eee) Mitchel la 
3. Stem erect (somewhat procumbent and spreading 
in Diodia); leaves deciduous; flowers cymose, 
solitary, or clustered, if paired, the ovaries not 
united; fruit a capsule. 
4, Corolla rotate. (Also, flowers sessile in 
axillary clusters). Expected (Hedyotis). 
4. Corolla funnelform or salverform. 
5. Flowers axillary, 1 to 3 per axil, 
sessile; leaves without stipules.......... Diodia 
5. Flowers in terminal cymes, or (not 
in species collected) solitary and 
peduncled; leaves connected by rounded 
Sil pitlieSirerets cvenelsssvelarerelelsy sh leteitieielcieleie siete OUStOnata 
Cephalanthus 
Cephalanthus occidentalis L. Buttonbush 
Java Farm. One station at west end of Phalaris arundinacea 
meadow, north of main building area. Hectare 2468. Associate 
species: Juncus effusus, Erechtites hieracifolia, Polygonum sagittatum, 
Polygonum pensylvanicun. 
Ivy Neck. One station on sand bar of cut-off pond on Rhode River 
shore of Cheston Peninsula. Hectare 4880. Associate species: Sium 
suave, Rumex verticillatus, Asparagus officinalis, Sambucus canadensis. 
Higman 175, 947. 
Galium 
1. Ovary and fruit smooth, muricate, or granular. 
Expected (G. verum, G. mollugo, G. obtusum, G. concinnum). 
1. Ovary and fruit bristly. 
2. Leaves 6 to 8 per whorl; stems weak, reclining. 
