OHDER 65. CORNACE^E. 143 



ovary, the limb minute, toothed or lobed. Petals distinct, alternate with 

 the calyx teeth, valvate in the bud, often 0. Stamens same number as 

 petals, inserted on the margin of the epigynous disk (in the $ flowers.) Ovary 

 \- or 2-celled. Fruit a baccate drupe, crowned with the calyx. Fig. 43C. 



1. CORNUS, L. DOGWOOD. Flowers perfect. Calyx limb of 4 minute 

 segments. Pet. 4, oblong, sessile. Sta. 4. Style somewhat club-shaped. 

 Drupe baccate, with a 2- or 3-celled nut. ^> *> u Lvs. entire. Flowers in 

 cymes, often involucrate. Floral envelopes valvate in {estivation. Bark 

 bitter, tonic. Fig. 430. 



Cymes subtended by a 4-leaved, white involucre. Fruit red No?. 1. 2 



Cymes naked. a Lvs. alternate, clustered at the ends of the branches No. 3 



a Lvs. opposite. b Twigs and cymes pubescent Nos. 4, 5 



b Twigs, &c., glabrous. -c Dnnes blue. Nos. 6, 7 

 <? Drupes wh...Nos. 8, 9 



1 C. Canadensis L. Low Cornel. Herbaceous, low ; upper Ivs. whorled, veiny, on 



short petioles ; st. simple ; invol. Ivs. ovate. U Damp woods, N. 48'. May, June. 



2 C. florida L. Flowering Dogwood. Arboreous ; Ivs. opposite, ovate, acuminate, 



entire ; fls. small, in a close, cymous umbel or head, surrounded by a very large, 4-lvrt. 

 obcordate involucre. Tree in woods, 20 30f. Invol. showy. May. Bark tonic. 



3 C. alternifolia L. Lvs. alternate, oval, acute, hoary beneath ; branches alternate, 



warty ; drupes purple, globous. Shruo or tree, 8 20f, with a flattened top. June. 



4 C. sericea L. Branches spreading, purplish, branchlets woolly ; Ivs. ovate or ellip- 



tical, acuminate, silky-pubescent beneath ; cymes depressed, woolly ; cal. teeth lance- 

 olate ; drupes light blue. Shrub 5 9f. Flowers yellowish white, crowded. June. 



5 C. asperiiolia MX. Branches erect, brownish, branchlets rough-downy ; Ivs. lance- 



oval, scabrous above, downy beneath; cymes hispid ; sep. minute. W. and S. May + . 



6 C. stricta Lam. Branches erect, brown, smooth; Ivs. ovate to lanceolate, smooth 



and green both sides, long-acuminate ; cymes loose, smooth ; sepals subulate, half as 

 long as the ovary ; anth. and fr. pale blue. Swamps, Va. to Fla. 8 12f. April. 



7 C. circinata L. Branches warty ; Ivs. round-oval, white-tomentous beneath ; cymes 



spreading, depressed ; drupes light blue. Shrub 5 lOf, E. and W. Lvs. large. June. 



8 C. paniculata L'Her. Branches erect, grayish, smooth ; leaves ovate-lanceolate, 



acuminate, hoary beneath ; cymes and drupes small, paniculate, white, (if. May, Jn. 



9 C. stolonifera MX. Bed Osier. St. often stoloniferous ; branches smooth: shoots 



virgate, reddish-purple ; Ivs. broad-ovate, acute, pubescent, hoary beneath ; cymes 

 naked, flat ; berries bluish-white. Small tree, E. and W. 8 lOf. May, June. 



2. NYSSA, L. TUPELO. GUM-TREE. Fls. dioecious or polygamous. 

 $ Calyx tube very short, limb truncate. Pet. 5, oblong. Sta. mostly 10, 

 inserted in the bottom of the calyx. Ov. 0. $ Calyx tube oblong, adhe- 

 rent to the 1-celled ovary, limb as in $ . Pet. 2 5, oblong, often 0. Sty. 

 large, stigmatic on one side. Drupe oval, 1-seeded. ^ with small green 

 fls. clustered on axillary peduncles, the sterile more numerous. Apr. June. 



1 N. multiflora Wang. Lvs. oblong-obovate, acutish or obtnsc at each end, entire ; 

 the petiole, midvein, and margin villous ; fertile peduncles 3-(2-5)-flowered ; sty. revo- 

 lute ; nut short, obovate, striate, obtuse. Tree 30 70f. Drupe blue-black, t 



Z N. uniflora Walt. Swamp Tupdo. Lvs; green, oblong-ovate or ovate, long-petio- 

 late ; fertile fls. solitary, 3-bracted, on slender peduncles ; sty. nearly straight; sterile 

 fls. 5 10 ; drupe oblong, as large as a plum. Tree 50 80f, in swampp, S. 



3 IV capita ta Walt. OgeecJite Lime. Leaves oval or oblong, short-petiolate, entire, 



