72 NORTH AMERICAN FLORA [VoLumME 29 
shorter than the tube; filaments 4-5 mm. long, very slender above the dilated bases, minutely 
pubescent; anthers fully 1 mm. long; capsules ovoid, 6-6.5 mm. long, the ribs very broad. 
Type collected in the vicinity of El Cuero, Oriente, Cuba, Britton & Cowell 12773 (herb. N. Y. 
Bot. Gard.). 
DisTRIBUTION: Known only from the type locality. 
DovustTFul, SPECIES 
. L&eucoOTHOE GLANDULOSA A. Rich. in Sagra, Hist. Cuba 11: 74. 1850. (Lyonia glandulosa 
oe merc ) Cub. 51. 1866, Andromeda glandulosa C. Wright; Sauv. Anal. Acad. Ci, Habana 
31, ARSENOCOCCUS Small; Small & Carter, Fl. Lancaster Co. 
218. 1913. 
Shrubs with erect branching stems and more or less pubescent foliage. Leaves alternate, 
deciduous; blades membranous, sometimes thickish, relatively broad, shallowly toothed, 
sessile or short-petioled. Flowers perfect, the clusters or racemes in terminal naked or leafy- 
bracted panicles. Calyx rotate, persistent; lobes usually 5, short, broad, much longer than 
the tube. Corolla white or nearly so, urceolate, usually globular or depressed, much exceeding 
the calyx; lobes very short, spreading or recurved. Stamens mostly 10, included; filaments 
slender above the dilated base, flattened, pubescent, unappendaged; anthers short, much 
shorter than the filaments, unappendaged. Ovary mostly 5-celled, depressed; style short, 
straight; stigma minute. Ovules numerous. Capsule depressed, usually spheroidal, ribbed 
at the sutures, but not angled, much longer than the calyx. 
Type species, Vaccinium ligustrinum L. 
Racemes and panicles naked or nearly so, disposed in short stout compound 
panicles. 1, A. ligustrinus. 
Racemes and panicles leafy-bracted, disposed in elongate slender compound 
panicles. 2, A. frondosus. 
1. Arsenococcus ligustrinus (L.) Small; Small & Carter, FI. 
Lancaster Co. 218. 1913. 
Vaccinium ligustrinum I. Sp. Pl. 351. 1753. 
Andromeda racemosa Lam. Encyc. 1: 158. 1783. 
Andromeda paniculata Ait. Hort. Kew. 2: 68. 1799. 
Andromeda paniculata nudiflora Michx. F\. Bor. Am. 1: 254. 1803. 
Lyonia paniculata Nutt. Gen. 1: 266. 1818. 
Lyonia salicifolia Wats. Dendr. pl. 38. 1825. 
Lyonia capreacfolia Wats. Dendr. pl. 127. 1825. 
Lyonia multifiora Wats. Dendr. pl. 128. 1825. 
Lyonia ligustrina DC. Prodr. 7: 599. 1839. 
Lyonia ligustrina capreaefolia DC. Prodr. 7:,600. 1839. 
Lyonia ligustrina salicifolia DC. Prodr. 7: 600. 1839. 
Lyonia parabolica K. Koch, Dendr. 21: 119. 1872. 
Xolisma ligustrina Britton, Mem. Torrey Club 4: 135. 1894. 
_ A branching shritb 1-4 m. tall, with more or less pubescent foliage; leaf-blades oblong, 
elliptic, or obovate, 3-7 cm. long, usually acute or abruptly acuminate, nearly entire or serru- 
late, narrowed into short petioles; panicles elongate or cluster-like, naked; pedicels 1-6 mm. 
long; calyx 3.5-4 mm. broad, the lobes triangular-ovate, acute or acutish, spreading; corolla 
white, subglobose or ovoid-globose, 2.5-3.5 mm. in diameter; capsules spheroidal, 3 mm. in 
diameter. 
Typk LocaLity: Pennsylvania. 
DISTRIBUTION: Maine to Arkansas and Florida. 
ILLUSTRATIONS: Wats. Dendr. #1. 37, 38, 127, 128; Britt. & Brown, Ill. Fl. f. 2771; ed. 2. f. 
2. Arsenococcus frondosus (Pursh) Small, Shrubs Fla. 97. 1913. 
Andromeda paniculata foliosifiora Michx. Fl. Bor. Am. 1: 255. 1803. 
Andromeda frondosa Pursh, Fl. Am. Sept. 295. 1814. 
Lyonia frondosa Nutt. Gen. 1: 267, 1818. 
Andromeda ligustrina pubescens A. Gray, Syn. FI. N. A. 21: 33, 1878. 
Xolisma ligustrina foliosiflora C. Mohr, Bull. Torrey Club 24: 24. 1897. 
Xolisma foliosifiora Small, Fi. SE. U. S. 889. 1903. 
Andromeda ligustrina foliosifiora Fernald, in Rob. & Fern. Man. 635. 1908. 
