verbenaceyE. 333 



Tribe I. PHRYMEiE. Ovavy one-celled, and with a single erect or ascending 

 orthotropous ovule. Seed without albumen. Radicle superior: cotyledons broad, 

 convolute round their axis. Inflorescence centripetal. 



1. PHRYMA. Calyx tylindraoeous, bilabiate ; up})L'r lip of 3 setaceous-subulate teeth; 

 lower of 2 short subulate teeth. Corolla with eyliudrieal tube equalling- the upper lip of 

 the caly.x. and a bilabiate limb: upper lip ahnost erect, emaruinate; lowt-r luucli hirger, 

 sprcadiuij, o-h)be(l. tStauieus didynauious, included : antla'rs 2-celIed, opening- lonjxitudinall}'. 

 Style slender: stigma 2-eleft. Fruit a dry akiMie in the bottom of the calyx. Calj'x 

 abruptly retlexcd on tlie axis of the spike in fruit, strongly ribbed, and closed by tlie 

 narrowing of the orifice : the long slender teeth iiooked at tlie tip. 



Tribk II. YERBEXE.E. Ovary, or at least the fruit, with 2 to 8 cells or initlets: 

 ovules anatropous or nearly so, erect. Radicle accordingly inferior. Inflorescence 

 centripetal and simple; the flowers in the spike commonly alternate: bi-actlets 

 none. Leaves simple, sometimes divided, but not compound. Stamens iu our 

 genera included and distinctly didynamous. 



* Flowers spicate or capitate. 

 -1— Calyx ampliate-globular and closed over the fruit. 



2. PRIVA. Flowers sleuder-spieate. Calyx at first cylindraceous, with 5 ribs produced 

 into short teeth, menibranaeeous and enlarging with and closely investing the dry indu- 

 rated fruit, which splits into a pair of 2-locellate or by abortion 1-locellate nutlets. 

 Corolla salverforni, 5-lobed, obscurely bilabiate. 



■i— -J— Calyx narrow, tubular, plicately 5-angled, 5-toothed, mostly enclosing the dry fruit : 

 corolla salverforni ; limb somewhat equally or unequally 5-lobed : akenc-like nutlets 

 1-celled, l-sceded. 



3. STACHYTARPHETA. Perfect stamens 2 (the anterior pair) and with divaricate 

 vertical anther-eells : jiostcrior reduced to sterile filaments. Stigma terminal, orbicular, 

 subcapitate. Fruit separating into 2 oblong-linear nutlets. 



4. BOUCHEA. Perfect stamens 4: anthers ovate, the cells parallel. • Stigma 2-l()bed, 

 one lobe abortive, the other subclavate-stigmatose. Fruit separating into 2 nutlets. 

 Seed linear. 



5. VERBENA. Perfect stamens 4 : anthers ovate ; the cells nearly parallel. Stigma mostly 

 2-lobed ; anterior lobe larger ; posterior smooth and sterile. Fruit separating into 4 nutlets. 



H K- -f— Calyx snuill and short : anthers short, the cells parallel : cells of the ovary and 



nutlets of the fruit 2, one-seeded : style mostly short : stigma thickish, mostly oblique. 



6. LIPPIA. Calyx 2-4-cIeft or toothed, ovoid, oblong-eanipanulato or compressed and 

 bicarinate, euelosing the dry fruit, which separates into 2 nutlets. Limb of corolla 

 oblique or bilabiate, 4-lobed. 



7. LANTANA. Calyx very small and membranaceous, truncate or sinuate-toothed. 

 Lind) of the corolla not bilabiate, obscurely irregular, 4-5-parted; the broad lobes obtuse 

 or rctuse; tube slender. Fruit drupaceous, merely girt at base by the calyx, fleshy or 

 juicy; its nutlets bony, mostly roughened. 



« * Flowers iu open raeemes, minutely bracteate : calyx tulnilar-campanulate, with trun- 

 cate minutely o-tootlied border: corolla salverforni ; the 5-parted limb somewhat obli(iue 

 or une([ual : anther-cells parallel : ovules amphitropous : drupe juicy, eontaiuing 2 to 4 

 bilocellate 2-seeded ])oiiy nutlets : subtropical and tropical shrubs or trees. 



8. CITHAREXYLUM. Calyx iu fruit girting the base of the drupe. Stigmas 2. Nut- 

 lets 2. Sterile fifth stamen present, rarely autheriferoiis. 



9. DURANTA. Calyx in fruit ampliate and enclosing the drupe. Corolla commonly 

 curved. Stigma unequally 4-lobed. Nutlets 4 : seeds therefore 8. 



Tribp: III. VITICILE. Ovary, embryo, &c., of the jn-eceding tribe. Ovules later- 

 ally affixed, ampliitropous. Inflorescence centrifugal, cymose. 



1 0. CALLICARPA. Flowers 4-merous (rarely 5-mcrous In calyx and corolla), nearly regu- 

 lar. Calyx short, sinuately toothed. Corolla with short or cani])aiiulate tube. Stamens 

 4, equal, exserted : anthers short; cells parallel. Style elongated: stigma capitate or 

 2-l()bed. Baccate drupe small, the base subtended by the calyx, containing 4 small 

 1-seeded nutlets or by abortion fewer. Cymes axillary. 



Tribe IV. AVICEXNIE^E. Ovary imperfectly 4-celled, with a central 4-winged 

 columella bearing 4 pendulous amphitropous ovules, these and the solitary seed de.s- 



