1'20 GLASS V 



FAOK. 



POTOMOflSToy— Calyx 4-sepalled. Stamens nearly 8'«sile. Fruit 4 nutlets. — 

 Aquatic submersed herbs, wUh small greenish flowers on a spOte, rising 

 above the to 351 



TlLUBA.— Sepals, petals, stranen?, and pistils 3 or 4. Carpels 3 or 4.— Small 



herbs. 125 



* * Pistils combined into one, free from the calyx. 



Eagina. — Sepsis, petal.*, and pistils 4 or ». Capsule 1-celled, several-seeded. — 



Small matted herbs. 58 



lux.— Calyx and eon Stamens and sub-sessile stigmae 4 or 



■>. — Trees or shrubs with spinose-dsntate leaves. 221 



CLASS V. PENTANDRIA.— 5 Stamens. 



ORDER I. MON ANURIA.— 1 Pistil. 



* Corolla 1-jietalledj regular. 



1 302 AGIXAC M.T. -Herbs, chiefly rough-hairy, 'with a^ernatp entire leaves, and 

 symmetrical Sewers with a 5-parted calyx, a regular 5-luled corolla, the 

 stamens inserted on. its tube, aud a deeply 4-lobed OTarj, forming iu 

 fruit 4 .-eLd-likv nutlets. 2G6 



1. Eciium. — Cordla obliquely irregular! naked in the throat. Stamjns un- 



equal exserted. — I lowers cyanic. 260 



2. Lv X PIS. — Corolla regular, funnel-form, with a curved tube, and with 5 ob- 



tnse hairy scales in the throat. — Flowers blue. 260" 



3. Symfhytum.— Corolla cylindrical-he' l-shapod, 6-toothed; the throat closed 



with 5 awl-£haped?eales.— -F/cuifr.s white and pink. 28€ 



4. Cn'svt-dioi. — Corolla oblong or ovate-tubular, with erect or converging 



lubes, and a naked throat. — Flowers yellowish-wlaU, in spiked racemes. 267 



6. LiTHO?PERMtM. — Corolla funuel-form, open. Stamens includad. — Flowers 



vdtiie or yellow, in leafy-bracUd spikes or racemes. 267 



ft. Myo:<-ti>.— Corolla salver-form, short, the throat half closed with obtuse 

 Kales. Stamens included on short filaments. — Flowers small, blue or 

 white, in naked racemes. 26* 



7. lfZBTEHSlA. — Corolla tuhu'ar-beli-forns, elongated, with a wide spreading 



border : scales none. — Smooth herbs, with showjf purplish-blue or wliits 

 flowers, in terminal racemes or clusters. 269 



8. Ecnixosi>>r.MCM. — Corolla salver-form. Nutlets prickly-margined.— Rough 



hairy and grayish herbs, w 'th small biuejlowcrs in bracted racemes, 208 



9. Ctno slosSCTI.— Cerolla funnel-form, the throat closed wifh 5 obtuse scales. 



Nutlets prickly all over. — Coarse herbs icith white or purplish fevers, 

 mostly in panicled racemes. 269 



10. BbraOO. — Corolla wheel-form, with acute segments, the throat closed with 



5 rays. — Rough herbs, with blue flowers, in l-sid:d clusters. 270 



11. Ancitusa. — Corolla funnel-form, vaulted ; tube straight, orifice closed with 



5 prominent scaler. Stigma emarginate — Exotics, herbs with cyanic 

 flowers. 270 



12. ru.voNAKTA.. — Calyx prhmatic. 5-angled. Corolla funnel-form with a cyl- 



indric tube: orifice hairy in 5 lines alternating with the stamen*. — Fz- 

 Otic herbs, with mo.-tly blue flower*. 271 



ff HTDROPIIYLLACEJ?.— HVrbs, commonly hairy, with mostly alternate and 

 cut-lob- d or compound lea v. s. regular 5-parte J and 5-androus blue or white 

 flowers, in one-sided cymes or raov-mea which are coiled from the apex 

 when youug.— Style 2-cltft. 271 



