194 



POPULAR FLORA. 



ers scattered in a long and naked slender spike; calyx greenish, 4-parted; stamens 5; styles 2, 

 bent down in fruit. Thickets. P. Vii-fjinianum. 



^- ^_ Somewhat climbing, or supported by recurved sharp prickly bristles on the strong angles of tha 

 stems, &c.; flowers white or flesh-color in small racemes or heads; root annual. The prickly 

 angles cut like a saw, whence the plants are called Tear-Thumb. 



11. Akkow-leayed K. Leaves arrow-shaped (Fig. 100), short-stalked; akene 3-angled. P. sngiilatum. 



12. Halberd-leaved K. Leaves halberd-shaped (Fig. 102), long-stalked ; akene flattish. Lovr 

 grounds. P. arifvlium. 



^_ s-^ ^- Twining annuals, with smooth stems and greenish or whitish flowers in panicled racemes; 



leaves heart-shaped and partly halberd-shaped. 



13. Climbing K. Smooth, climbing high over shi-ubs, tScc. ; racemes leafy ; 3 of the calyx-lobes more 

 or less winged in fruit. Thickets in low ground. P. dunwtbrum. 



14. BixDAVEED K. Low, stems roughish ; racemes corymbed; three of the calyx-lobes ridged in the 

 middle. Cult, and waste grounds. P. Convolvulus. 



80. LAUREL FAMILY. Order LAURACEvE. 



Trees or slirnbs, with spicy bark and leaves ; the latter marked "svith transparent dots 

 ■under a magnifjing-glass, alternate and simple ; the calyx of 6 petal-like sepals. Stamens 



9 or 1 2 on the very bot- 

 tom of the calyx ; the 

 anthers opening by up- 

 lifted valves. Pistil sim- 

 ple, with a one-celled 

 ovarv, in fruit formin<j 

 a berry or drupe, one- 

 seeded. ♦Flowers gener- 

 ally polygamous or dioe- 

 cious in spring. — Aveiy 

 well-marked family, most- 

 486 43, 485 487 1}' 'm hot couutrics, but 



4S4. Sterile fiovver of Sassafras. 485. Fertile flower of Hie same. 483 Mn2iufiecl_st^men, We pOSSCSS tWO Or turce 



with (wo ."/"TJcf .■ at lite liase , t'^e aiit'icr orpii iishv two Inr'j,. ;,nrl t-vi siiiill valve": ^'~7 ^'-^^'h ^ _ j. *.• . ^,, 



villi the ova y iiivitleil to show 1|]C ovule liaiigiiig from the top. 4&8. Leaf and cluster of fi uil. representatives. 

 489. Lower half of full, cut across. 



Flowers perfect : stamens 9, with good anthers, and 3 sterile ones. Tree, with entire 



oblong leaves; common South, (Pcrsea) Red-Bay. 



Flowers dioecious or nearly so, greenish-yellow: stamens 9, about 3 of them with yel- 

 low glands at the base of the filaments (Fig. 4f6). 

 Anthers 4-celled and 4-valved. Tree: flowers in stalked corymbs, appearing with 



the leaves; some of the latter 3-lobed, { Sassafras) Sassafras. 



Anthers 2-celled and opening by a single valve to each cell. Shrub: flowers in ses- 

 sile clusters, appearing earlier than the entire leaves, {Benzoin) SriCEBUSH. 



