KEY, BASED UPON FRUIT. 15 



d*. Fleshy pericarp, 

 e. Ovoid and 

 /. Clustered on axillary peduncles, 



<j. On the growth of the season, 2 or 3 together, 2 in. long, blue, 

 h. Sessile upon the peduncle ; stone longitudinally striated, 



9. NYSSA MULTIFLORA. 



ft 2 . Pedicellate, stone not striated; fruit subtended by persistent 

 Calyx tube and lobes, in. or less in length 



113. PERSE A PALUSTRIS. 

 Enlarged calyx-tube only, 1 in. or less in length. 



159. UMBELLULARIA CALIFORNICA. 



</ 2 . On growth of the previous season. .111. FORESTIERA ACUMINATA. 

 / 2 . Racemed, bluish and with short, fleshy, red pedicels. 



32. SASSAFRAS OFFICINALE. 



e 2 . Ovoid-oblong, 1-1 in. long, stone compressed 81. PRUNUS NIGRA. 



e 3 . Oblong, tipped with the remnants of the style and about 1 in. in 



length. 

 Reddish and stone longitudinally striated with membranous-edged 



ridges 110. NYSSA OGECHE. 



Dark blue, stone not membranous-ridged. 



112. OSMANTHUS AMERICANUS. 

 e*. Subglobose and surface 

 /. Smooth 



g. Purple or purplish black and 



h. Solitary, of a sweet flavor 12. CELTIS OCCIDENTALIS. 



7i 2 . In racemes and of a vinous or astringent flavor ; racemes 

 4-6 in. long ; drupes numerous and i in. thick. 



29. PRUNUS SEROTINA. 



1-3 in. long ; drupes few and larger. .156. PRUNUS ILICIFOLIA. 

 h 3 . In umbels, larger, of 



Acid- vinous flavor i in. in diameter.. .82. PRUNUS CERASUS. 

 Sweet-vinous flavor f in. in diameter. .56. PRUNUS AVIUM. 



</ 2 . Red, small and very sour 55. PRUNUS PENNSYLVANIUM. 



f-. Papillose and with waxy exudation 164. MYRICA CALIFORNICA. 



2 . Drupe-like but containing more than one seed, and seeds 

 d. Inclosed in a bony 

 e. 2-3-celled stone 



Blue, subglobose. in flat-cymes with red stems. 



87. CORNUS ALTERNIFOLIA. 



Bright-red, elongated, sessile upon an orange-colored disk. 



8. CORNUS FLORIDA. 

 e 2 . 3-5-celled stone ; yellowish-white, in loose axillary panicles. 



105. MELIA AZEDARACH. 



d 2 . Distinct, (not inclosed in a common stone) ; fruit 

 e. Crowned with persistent 

 /. Calyx-teeth, 



Purple-black, 5-seeded, in umbels .8. ARALIA SPINOSA. 



Red or purplish, 4-8 seeded, auxiliary 52.. ILEX OPACA. 



f 1 . Style or remnants of it ; fruit about 



J- in. long, dryish, in racemes 107. CYRILLA RACEMIFLORA. 



i in. long, juicy, in cymes 157. SAMBUCUS GLAUCA 



/ 3 . Not crowned with either calyx- teeth or style, 

 g. Sessile, scaly-bracted beneath ; leaves evergreen. 



Dark blue, seeds 1-4 25. JUNIPERUS VIRGINIANA. 



Blue -black, seeds, 2-3 168. JUNIPERUS OCCIDENTALIS. 



Reddish-brown ; seeds 1-2 167. JUNIPERUS CALIFORNICA. 



g' 2 . Pedicellate, not scaly-bracted beneath, black, more or less 2-3 



lobed and 2-3-seeded 126. RHAMMUS PURSHIANA. 



C 4 . Nut hard, single coat and furnished with an involucral cup or covering. 

 d. Ovoid oblong or ellipsoidal, surrounded at its base with an involucral 



cup (Quercus) acorn borne 



e. On the new wood of the season (i. e. maturation annual) cup 

 /. Less than enveloping the oval acorn. . . .136. QUERCUS GARRY ANA. 



