BORRAGINACEAE 995 
pedicels 5-11 cm. long : calyx 5-7 mm. long, becoming 10 mm. long ‘at maturity ; lobes 
broadly triangular or ovate-triangular, shorter than the tube: corolla lurid yellow or 
greenish, 1.5-2 cm. long; tube inflated and constricted near the throat ; limb 10-15 mm. 
broad, the rounded lobes veiny : capsules broadly ovoid, or globose-ovoid, 8-10 mm. long. 
In fields and waste places, Ontario to Minnesota, New York and Florida. Escaped from cultiva- 
tion. Summer. 
5. Nicotiana glaüca Graham. A branching shrub, or a tree becoming 6 m. tall: 
leaf-blades ovate or oblong-ovate, 5-30 cm. long or sometimes larger, undulate, long or 
slender-petioled : panicles long : pedicels mostly less than 10 mm. long: calyx 11-15 mm. 
long ; lobes lanceolate or triangular-lanceolate, shorter than the tube: corolla yellow or 
yellowish, 3.5-4 cm. long; tube gradually enlarged to the slightly constricted throat; 
limb about 10 mm. broad, the lobes broad but acutish : capsules narrowly ovoid or oblong- 
ovoid, 10-12 mm. long. 
In waste pacen ten gr ony of the Gulf States and California, and on ballast further northward. 
Also in tropical America. Native of Argentina. 
13. PETUNIA Juss. 
Annual or perennial herbs, with viscid-pubescent foliage and branching stems. 
Leaves alternate: blades entire. Flowers solitary in the axils. Calyx of 5 partially 
united sepals: tube rather short: lobes narrow. Corolla white, violet, purple or varie- 
gated, funnelform or salverform: limb spreading, plaited, nearly regular. Stamens 5, 4 
didynamous, fertile, the fifth smaller or obsolete : filaments adnate to the base of the co- 
rolla-tube. Ovary 2-celled. Stigma 2-lobed. Capsule 2-valved: valves entire. Seeds 
numerous, rugose. 
1. Petunia parviflóra Juss. Annual, somewhat pubescent. Stems more or less dif- 
fusely branched, 1-4 dm. long: leaves rather fleshy ; blades spatulate to oblong, 0.5-1.5 
em. long, entire: calyx glandular-pubescent ; lobes linear or linear-spatulate, 4-6 mm. 
long: corolla about 5 mm. long; tube yellowish or pale white; limb purple, 6-8 mm. 
broad : capsules ovoid, 3-4 mm. long, surpassed by the calyx-lobes. 
In dry soil, Florida to Texas and California. Throughout tropical America. Spring to fall. 
14. BOUCHETIA DC. 
Perennial herbs, with viscid-pubescent foliage and decumbent or ascending stems. 
Leaves alternate: blades entire. Flowers on solitary pedicels terminating the branches, 
or opposite the leaves. Calyx of 5 partially united sepals: tube ratber long-campanu- 
late: lobes narrow. Corolla commonly white, funnelform : tube dilated above : lobes 5, 
broad, plicate. Stamens 5, included, 4 didynamous, the fifth smaller: filaments adnate to 
the lower part of the corolla-tube. Anther-sacs confluent at the apex. Ovary 2-celled. 
Capsule 2-4-valved. Seeds numerous, granular. 
1l. Bouchetia anómala (Miers) Britt. & Rusby. Stem more or less branched, 1-3 
dm. tall, finely pubescent. Leaf-blades oblong, elliptic, oblong-spatulate or lanceolate to 
broadly linear above, 1-3 cm. long, entire, the lower ones petioled : pedicels terminal, 
1-1.5 em. long : calyx 6-10 mm. long ; lobes lanceolate or linear-lanceolate, as long as the 
tube or somewhat shorter: corolla mainly white with delicate purple lines, about 1 cm. 
long, broadly funnelform ; lobes broad and rounded: capsules oblong or ovoid-oblong, 
7-8 mm. long. 
On prairies and rocky hillsides, Texas. Also in tropical America. Spring to fall. 
FAMILY 7. BORRAGINACEAE A. Gray. BORAGE FAMILY. 
Herbs or shrubby plants, with watery sap. Foliage commonly clothed with 
bristly pubescence. Leaves alternate, without stipules: blades simple, mainly 
entire. Flowers typically perfect, regular, or sometimes irregular, more or less 
remote from the bracts, cymose, but apparently in spikes or racemes, which are 
often scorpioid. Calyx of 5, or rarely 4, more or less united sepals, persistent, 
sometimes corolloid. Corolla hypogynous, deciduous: limb 5-lobed: lobes 
usually equal, convolute, plicate or induplicate. Androecium of 5 stamens, ad- 
nate to the corolla-tube, sometimes as high as the throat. Filaments often 
appendaged. Anthers introrse. Gynoecium of 4 nearly distinct or more or less 
cohering carpels. Styles united, arising from between the ovary-lobes. Stigma 
