302 FLORA OF PHILADKLFHIA. 



2. Sambucus pubens Michx. Red-berried Elder. M. p. 869. Rocky woods. 

 Spring. 

 Bucks — Nockamixon, Point Pleasant, river clitt's, Upper Black Eddy 

 (Ws.). Chester — Valley Forge, West Chester, Joshua Hoopes (Fu.). 

 Lancastei' — New Texas (Ca.). Berks — Hamburg (Li.). Lehigh — Rock- 

 dale (Kr.), Lehigh Valley (Sch.). Northamptov — CP.). 

 Sambucus ebulis. Ballast. 

 Camden — Kaighn's Point. 



2. VIBURNUM L. Arrow-wood. 



Outer tiowers of the cyme large, radiant; drupe red. 1. V. Opulus. 



None of the flowers radiant ; drupe blue or black. 



Leaves palmately veined or 3-ribbed. 2. F. acerifolium. 



Leaves pinnately veined. 



Leaves coarsely dentate, the veins prominent beneath. 



Leaves very short-petioled, pubescent. 3. F. pubesctiis. 



Petioles 0.6-4 cm. long. 



Leaves glabrous, or with tufts of hairs in the axils be- 

 neath. 4. V. dentatum. 

 Leaves pubescent beneath, the pubescence more or less 

 stellate. 5. F. venosum. 

 Leaves entire, crenulate or serrulate, the veins n^^t prominent. 

 Cymes manifestly peduncled. 



Peduncle shorter than the cyme ; leaves crenulate. 



6. F. cassinoides. 

 Peduncle equalling or longer than the cyme. 



7. F. nudum. 

 Cymes sessile or nearly so. 



Leaves prominently acuminate. 8. F. Leiitagu. 



Leaves obtuse or merely acute. 9. F. prunifoUum. 



1. Viburnum Opulus L. Cranberry-tree. M. p. 870. Cultivated. Early 



summer. 



2. Viburnum acerifolium L. Dockmakie. M. p. 871. Dry woods. Spring. 



3. Viburnum pubescens (Ait.) Pursh. M. p. 871. Rocky woods. Early 



summer. 

 Bucks — Nockamixon, near Sellersville (Fr.). Chester — (P.). North- 

 ampton — (P.). 



Mercer — Princeton (C). Hunterdon — l^ambertviWe (C). 



4. Viburnum dentatum L. M. p. 871. Moist places. Spring. 



5. Viburnum venosum Britton. M. p. 871. Moist soil. Spring. 



£wcts— Woodbourne (Br.), Rock Hill (Fr.), Quakertown (P.). Vela- 

 ware — Preston Run Barrens, Newtown (B. Sm.). 



Comdejt— Near CoUingswood (Mar.). Gloucester— 'MnWic-A Hill (C), 

 Swedesboro (Li.). iSaZe?n— Riddleton (He.) (Le.). Mercer— Trenton 

 Junction (Br.). Monmouth — Sandy Hook (Mac). 



6. Viburnum cassinoides L. Withe-rod. M. p. 872. Swamps and wet 



soil. Early summer. 



jSmc^s— TuUytown (Mac). 



Burlington — Brown Mills (Le.). Camden — Cedar Brook (Ke.), Kirk- 

 wood (Mar.). GioMcesier — Near Mickleton (He.), Repaupo, Tomlin 

 (Ja.). <SaZe7«— Woodstown (Wa.). .4fZantic—Hammonton, May 's Land- 

 ing (Li.), Batsto (VP.). 



