GENUS I. POTATO FAMILY. : 155 
dehiscent. Disk present, or none. Ovary entire, superior, 2-celled (rarely 3-5- 
celled) ; ovules numerous on the axile placentae, anatropous or amphitropous; 
style slender, simple; stigma terminal: fruit a berry or capsule. Seeds numerous, 
the testa sometimes roughened; embryo terete, spiral, curved, or nearly straight; 
endosperm fleshy ; cotyledons semiterete. 
About 75 genera and 1750 species, widely distributed, most abundant in tropical regions. 
* Fruit a pulpy berry; corolla plicate, its lobes generally induplicate. 
Anthers unconnected, destitute of terminal pores, dehiscent. 
Fruiting calyx bladdery-inflated. 
Fruiting calyx 5-angled and deeply 5-parted; ovary 3-5-celled. . Physalodes. 
Fruiting calyx 5-lobed, not parted, 10-ribbed, often 5- 1o-angled, fatidlaten. wholly enclosing 
the berry; ovary 2-celled. 
Corolla open-campanulate, yellowish or whitish, often with a dark center seeds with a 
thin margin, finely pitted. . Physatis, 
Corolla flat-rotate, violet or purple; seeds thick, rugose-tuberculate. Bs Quincula. 
Fruiting calyx somewhat enlarged, but closely fitted to the fruit, thin, obscurely veiny, open at 
the mouth. 
Corolla rotate, whitish ; lobes of fruiting calyx much exceeding the berry. 4. Leucophysalis. 
Corolla rotate, whitish, sometimes tinged with purple; fruiting calyx not exceeding the 
berry. 5. Chamaesaracha. 
Anthers connivent or slightly connate: fruiting calyx not enlarged. 
aAnthers short or oblong, opening by a terminal pore or short slit in our species. 6. Solanum. 
Anthers long, tapering from base to summit, longitudinally dehiscent. 5. Lycopersicon, 
** Fruit a nearly dry berry; corolla campanulate, little or not at all plicate, a6 lobes imbricated. 
. Lyetum, 
*** Fruit a capsule; corolla funnelform. 
Capsule cireumscissile toward the top, which separates as a lid; corolla irregular. 9. Hyoscyamus. 
Cc apsule opening by valves. 
Capsule generally prickly. 10. Datura. 
Capsule not prickly. 
Flowers paniculate or racemose: stamens nearly uniform in length. 11, Nicotiana, 
Flowers solitary ; stamens very unequal. 12. Petunia, 
1. PHYSALODES Boehm. in Ludwig, Def. 41. 1760 
[Nicanpra Adans. Fam, Pl. 2: 219. 1763.] 
An annual erect branching glabrous herb, with alternate petioled thin sinuate-dentate or 
lobed leaves, and large light blue peduncled nodding flowers, solitary in the axils. Calyx 
5-parted, s-angled, much inflated in fruit, its segments ovate, connivent, cordate or sagittate 
at the base, strongly reticulated. Corolla broadly campanulate, plicate in the bud, slightly 
s-lobed. Stamens 5, included. inserted on the corolla near its base; filaments filiform. dilated 
and pilose below: anthers oblong, the sacs longitudinally dehiscent. Ovary 3-5-celled; style 
slender: stigma 3-5-lobed. Berry wlobese | nearly dry, enclosed in the calyx. [Greek, Physalis- 
like.] 
A monotypic Peruvian genus. 
1. Physalodes physalodes (L.) Britton. 
Apple-of-Peru. Fig. 3605. 
altropa physalodes L. Sp. Pl 181.1753 
Physalodes feruvianum Kuntze, Rev. Gen. Pl. 452. 
1So1. 
P. physalodes Britton, Mem. Torr, Club 5: 287. 1894. 
Stem angled, 2°-s° high. Leaves ovate or 
oblong, acuminate but Br Wncigees narrowed at 
the base, 3-8 long. 1-4’ wide: , petioles longer 
than the peduncles; flowers 1-13’ long and 
broad: corolla-limb almost entire: fruiting calyx 
1-1¥' long and thick. its segments acute at the 
apex, their basal auricles acute or cuspidate: berry 
about 3° in diameter, loosely surrounded by the 
calyx. 
In waste places. escaped from gardens, Nova Sca- 
tia to Ontario, Florida, Tennessee and Missouri. 
Adventive from Peru. Plant with the aspect of a 
large Physalis. Leaves similar to thase of Stramo- 
nium, Tuly-Sept. 
2. PHYSALIS L. Sp. Pl. 182. 1753.* 
Annual or perennial herbs, sometimes a little woody below. with entire or sinuately 
toothed leaves. Peduncles slender. in ours solitary from the axils of the leaves. Calyx 
campanulate. s-toothed, in fruit enlarged and bladdery-inflated. membranous, 5-angled, or 
prominently ro-ribbed and reticulate, wholly inclosing the pulpy berry, its teeth mostly 
* Text contributed to our first edition by Dr. P. A. Rypperc, here somewhat revised. 
