134 MISSOURI BOTANICAL GARDEN. 
C. Bractlets usually small, glabrous or with marginal glands 
as the calyx; corolla glabrous without, usually 1.5-2 
cm. long, the upper lip divided one-half co two-thirds; 
peduncles 1.5-2 cm. long, slightly pubescent; leaves 
ovate-lanceolate, acuminate, glabrous above, pubescent 
beneath, 6-10 cm. long. 93. L. Ruprechtiana, Reg. 
CC. Bractlets usually as long as ovaries, ciliate; corolla pubes- 
cent without, about 1.5 cm. long, upper lip divided nearly 
to the base with the outer lobes spreading; leaves ovate- 
elliptic, abruptly and shortly acuminate, pubescent above, 
densely villous beneath, 3-5 cm. long. 
94. L. Morrowii, Gray. 
BB. Ovaries glandular and sometimes pilose, rarely glabrous; upper 
lip divided one-fourth or one-third; winter buds rather large, 
with ovate to lanceolate pubescent or long-ciliate scales. 
C. Bractlets distinct or only slightly connate at the base, 
about one-half as long as the glandular or rarely glabrous 
ovary. 
D. Leaves broadly ovate to obovate or oblong, acute or 
shortly acuminate, usually pubescent on both sides, 
3-7 cm. long; peduncles 1-2cm. long; corolla whitish, 
often tinged with red; bractlets broad, rounded or 
sometimes truncate; fruit dark red, rarely yellow. 
95. L. Xylosteum, Linn. 
DD. Leaves rhombic-ovate to ovate-lanceolate, long acumi- 
nate, 6-12 cm. long, more or less pilose on both sides; 
peduncles 1.5-2.5 cm. long; corolla yellowish-white; 
bractlets ovate, usually distinct; ovaries usually 
ovoid; fruit bright cherry red. 
96. L. chrysantha, Turcz. 
CC. Bractlets of each flower connate, one-half to three-fourths 
as high as the glandular and pilose ovary; corolla yel- 
lowish, pubescent without; anthers pilose; peduncles 
1.5-2.5 cm. long; leaves ovate or rhombic-ovate to obo- 
vate, acuminate, to 6-10 cm. long, nearly glabrous above, 
villous-pubescent and glaucescent beneath. 
97. L. Koehneana, Rehd. 
AA. Peduncles short, rarely exceeding the petioles, 3-10 mm. long; 
bractlets more or less connate, half as high or as high as ovaries. 
B. Calyx campanulate, divided about one-half into ovate to lanceolate» 
acute teeth; corolla glabrous or pubescent without, 18-20 mm. 
long, with very short scarcely gibbous tube; upper lip divided 
about two-thirds; stamens half as long as limb, bractlets usually 
connate only at the base; leaves ovate-lanceolate to lanceo- 
late, long acuminate, attenuate at the base, 5-8 cm. long, 
sparingly pubescent beneath; fruit dark red. 
98. L. Maackii, Rupr 
Pixs 
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