490 ORDER 73. ERICACEAE. 



y. ilisPiDA. Brancblets and Ivs. above very hispid ; Ivs. lanceolate, glaucous, 

 glabrous beneath ; tube shorter. Mts., N. Y., Penn. (Pursh.) 



2 A. nudiflora L. PINXTER-BLOOM. Young branehlets hairy ; Ivs. oblanceolato 

 and obovate, downy beneath ; dusters naked, appearing with or before the young 

 leaves ; cal. very small ; cor. slightly viscid, tube downy, scarcely longer than the 

 segments ; stam. (5 to 7) much exserted. Frequent in forests throughout the 

 country, especially southward. St. crooked, much branched, the branchlets often 

 in irregular whorls. Pedicels short. Tube nearly 1' long, segm. spreading !'. 

 Stam. twice as long as the tube, style thrice. Its varieties in color are numerous 



' and splendid, e. g., pink-colored, slightly fragrant ; deep purple; white variegated 

 with purple and yellow; white with a buff-colored center, fragrant; luff-colored all 

 over, very fragrant. Ap. Jn. 



(3. CALYCOSA. Cal. with one of its segm. subulate, 3 or 4 times longer than 

 the others (not constantly so even in the same umbel.) Ga. (Miss Wyman). 

 (A. bicolor Ph. ?) 

 7. POLYANDRA. Stam. 10 to 20; cor. rose-colored (Pursh). 



3 A. calendulacea MX. FLAMING PINXTER. Young branchlets pubescent ; Ivs. 

 oblong, attenuated to the base, mucronate, smoothish or pubescent ; corymbs nearly 

 or quite leafless ; cal. lobes oblong ; tube of the cor. hirsute, not viscid, shorter than 

 the ampk lobes. A splendid flowering shrub, in mountains and woods, Penn. to 

 Ohio and Ga. Fls. very numerous, limb expanding 18 to 20", usually yellow and 

 bright crimson, showing at distanco like flame. Its varieties are numerous, e. g., 

 flame-colored; brick-red (very rich); saffron-yellow. Cultivation has produced 

 many more. May, Jn. 



4 A. arbor^scens Ph. TREE AZALEA. Branches smooth; Ivs. obovate. botli 

 sides glabrous, glaucous beneath, margins ciliate, veins nearly glabrous ; corymbs 

 leafy with full grown leaves ; cal. lobes oblong, acute ; cor. tube not viscid, longer 

 than the lobes ; stam. and sty. exsert. Rivulets near the Blue Mts., Penn. to (Ma- 

 con) Ga. Shrubs 10 to 20f high. Fls. rose color, scales of the flower buds 

 large, yellowish-brown, with a fringed white border. Sepals fully 2" long. A 

 very distinct species. May Jl. 



5 A. Pontica L. Lvs. ovate and oblong, pilous-ciliated on the margin, acute 

 or acuminate ; fls. with full grown Ivs. viscid tube funnel form, about as long as 

 the segments ; stam. very long-exserted. Cultivated. This splendid shrub comes 

 from Asia Minor, but is in no wise superior in beauty to our own A. calendu- 

 lacese (which it much resembles). Varieties of every hue. (R. flavum Don.) 



16. RHODODEN'DRON, L. ROSE BAY. (Gr. podov, a rose, dtvdpov, 

 ji tree.) Calyx (small) deeply 5-parted, persistent ; corolla campanu- 

 late, slightly unequal or regular, 5-lobed ; stam. 10 (rarely fewer), 

 mostly duclinate, anth. opening by 2 terminal pores ; capsule 5-celled, 

 5-valved, many-seeded. Shrubs with alternate, entire, evergreen Ivs. 

 Fls. in dense, terminal umbels from large, scaly buds. (Fig. 355.) 



Calyx lobes larse, leaf-like. Loaves hairy. Stamens 5 to 10 No. 1 



Calyx lobes small, scale-like. Leaves obtuse at each Tml Nos. 1, 2 



Leaves acute, rusty or silvery beneath Nos. 3, C 



Leaves acute, glabrous beuea'th Nos. 4, 5 



1 R. Lapponicum Wahl. LAPLAND ROSE BAY. Dwarf; Ivs. elliptical, obtuse, 

 very small, roughened with concave rusty scales both sides ; fls. in terminal, leafy 

 clusters, campanulate, limb spreading, 5-lobed; stam. 5 to 7 to 10, exserted. 

 An erect shrub, 8 to 10' high, native of high mts., N. Eng. and N. Y. Branches 

 numerous, with a rough bark. Lvs. about 5" by 2^", revolute, ferruginous be- 

 neath, crowded. Cor. 7 to 8" diam., deep purple, regular. Jn., Jl. 



2 R. Catawbiensis MX. CATAWBA ROSE BAY. Lvs. oval, rounded-obtuso at 

 each end, paler beneath, smooth ; cal. lobes oblong, elongated ; cor. broad-cam- 

 panulate ; stam. 10. On the highest summits of the Alleghanies, Ta. and Car. 

 Shrub 3 to 5f high. Fls. bluish purple, without spots, much larger than in No. 

 1. Jn. 



3 R. punctatum L. Lvs. oval-lanceolate, acute at each end, ferruginous and 

 sprinkled with resinous dots beneath ; cal. teeth very short . cor. narrow, campanu- 



