SOLANACEAE 1107 
2. PHYSALIS L. Annual or perennial branching, often diffuse herbs. 
Leaf-blades entire or sinuate. wers axilary, nodding, mostly solitary. 
Calyx bladder-like at maturity: lobes short and conver d Corolla cam- 
panulate, mainly yellow or whitish, often dark in the cen Ovary 2-celled. 
Berry globular, enclosed in the papery calyx.—About 80 species, oa Ameri- 
can.—Sum., or all year S.—GROUND-CHERRIES. JERUSALEM-CHERRIE 
Annual plants, with much branched roots 
Fruiting calyx sharply 5-angled, deeply sunken at the base: calyx-lobes at flower- 
g time fully as long as the tube. I. PUBESCENTES. 
l in m 
Fruiting calyx obtusely or indistinctly 5- or 10-angled: 
calyx-lobes at flowering time epee than the tube 
(except sometimes in P. Carpenteri). 
Leaf-blades acute: flowers solitary in the axils. II, ANGULATAE. 
Leaf-blades rae aod sud often pieces III. CARPENTERIANAE. 
Perennial plants, with horizontal r 
ubescence of simple Dur 
Pu A dS sparse, Seldom if at all glandular or vis- 
IV. LANCEOLATAE. 
Pubescence ag viscid or glandular, generally a 
re of fine short hairs and long flat-jointed 
oe 
ones. 
Pubescence mainly of stellate hairs. VI. VISCOSA 
z PUBESCENTES 
Plants more or less viscid pubescent. 
Fruiting calyx not long- a leaf-blades very oblique. 
Leaf-blades ovate, subentire at the base: stem slen- 
der, diffuse, sharply angled. 1. P. pubescens. 
Leaf- blades cordate, strongly sinuately toothed to the' 
bas stem obtusely angled. 
henge. broadly rounded, cordate, 2-5 em. long: 
stem weak, diffuse 2. P. floridana. 
Leaves elongated, cordate: 4-10 em. long: stem 
out. 3. P. pruinosa. 
ruitin calyx  long-acuminate:  leaf-blades scarcely . 
oblique at the base, cordate, abruptly acuminate. 4. P. barbadensis. 
Plants glabrous or puberulent when young. b. P. turbinata. 
II. ANGULATAB 
Plant Dae and more or less viscid. 6. P. missouriensis. 
Plant glabrou 7 P. angulata. 
III. CARPENTERIANA 
Plant resembling that of Solanum nigrum in habit, p leaf- 
blades thin. 8. P. Carpenteri. 
IV. LANCEOLATAE 
Leaves glabrous: upper part of the stem, calyx and veins of 
the leaves with few, if any, Short appressed hairs. 9. P. subglabrata. 
Leaves pu. stem sparingl hairy with longer, flat, spread- 
in reflexed, oiten jointed, hairs (some of the 
g 
pac cics ae slightly viscid). 
Fruiting calyx ovoid, scarcely angled and scarcely sunken 
at the base: leaf-bladcs thick, subentire. 10. P. lanceolata. 
Fruiting calyx pyramidal, more or less 5-angled and 
E sunken ka the base: leaf-blades thin. 
Fruiting calyx oid-pyramidal: leaf-blades nose 
ovate or Joco A tapering at the ds 
Leaf-blades more or less Eu dent dec. 
Calyx strigose or puberu : 11. P. virginiana. 
Calyx villous. 12. P. monticola. 
Leaf-blades subentire or wavy margined. 
Leaf-blades firm: plant not at all viscid. 13. P. rigida. 
gear oe very thin: plant more or less vis- 
above when youn 14. P. intermedia. 
Fruiting Cale oblong-pyrami idal or nearly cylindrical: 
m oo ades broadly ovate, truncate or cordate at 
Leaf- blades rather firm, reticulate: stem and 
leaves puberulent. 15. P. arenicola. 
1 Contributed by the late Per Axel Rydberg. 
