This genus, although referred by Sir J. E. Smith to the Verbenarese, and l>y Don {Prodr. fl. 

 nepal. p. 103) to the genus Clerodendron, belongs undoTibtedly to the order Labiatse, and is 

 indeed scarcely distinguishable from Teucrium. In habit it comes nearest to T. hyrcanicum. 

 The structure of the flower is so nearly that of T. heterophyllum Desf., that if the genus be 

 retained, the latter species should probably be added to it. 



25. Teucrium. Li7in — Calyx tubulosus, ovatus v. campanulatus, 5-fidus v. .'j-dentatus, sub- 

 sequalis v. bilabiatus. CorollaK tubus calyce subbrevior ; labium superius bipartitum, laciniis 

 demissis : inferius patens, 3-fidum. Stamina 4, ascendentia, e fissura labii superioris longe exserta. 

 Antherae, loculis divaricatis confluentibus, subuniloculares. Stylus apice subaequaliter bifidus. 

 Achenia reticulato-mgosa. 



This genus is easily subdivided into very natural sections, which, however, appear to me too 

 closely connected to form separate genera. 



26. Amethystea. Limi Calyx campanulatus, subsequalis, 5-fidus. Corollas tubus calyce 



brevior, labium superius bipartitum : laciniis demissis, inferius patens, 3-fidum. Stamina fer- 

 tilia 2, ascendentia, e fissura labii superioris longe exserta. Antherae biloculares, loculis 

 divergentibus, demiim divaricatis subconfluentibus. Stylus apice subaequaliter bifidus. Achenia 

 reticulato-mgosa. 



This genus only differs from Teucrium by the abortion of the two upper stamina. A. coerulea 

 is most nearly allied to Teucrium orientale. 



27- Trichostema. Linn — Calyx campanulatus, oblique 5-fidus, resupinatus. Corolla, tubo 

 calyce incluso, v. exserto incurvo, bilabiata : labio superior! integro falcato, v. bifido, lobis 

 demissis : inferiori 3-fido, lobis lateraUbus suberectis, medio patente. Stamina 4, ascendentia, e 

 labio superiori longe exserta, falcata. Anther* biloculares, loculis demum divaricatis. Stylus 

 apice subaequaliter bifidus. Achenia reticulato-rugosa. 



This genus is allied to Amethystea and to Isanthus, which latter genus ought perhaps to be 

 brought to this tribe ; but my specimens are not good enough to enable me to ascertain precisely 

 the direction of the stamina. 



28. Ajuga. Linn, — Calyx ovatus, subaequalis, 5-fidus. Corolla tubo suhexserto, bilabiata : 

 labio superiori abbreviato erecto integro vel emarginato, inferiori majore patente trifido. 

 Stamina 4, ascendentia, e labio superiori exserta. Antherae 2-loculares, loculis divergentibus 

 vel divaricatis subconfluentibus. Stylus apice subsqualiter bifidus. Achenia reticulato-rugosa. 



29. Anisomeles. Br. — Calyx ovatus, subwqualis, 5-dentatus. Corolla tubo calycem sub- 

 aequante, bilabiata, labio superiori abbreviato erecto integro, inferiori majore patente 3-fido. 

 Stamina 4, ascendentia, e labio superiori exserta. Antherae longiorum dimidiatae, breviorum 

 hiloculares, loculis parallelis transversalibus. Stylus apice subaequaliter bifidus. Achenia laevia. 



30 ? CoUinsonia. Linn Calyx ovatus, bilabiatus, labio superiori 3-dentato, inferiori bifido. 



Corolla bilabiata, labio superiori abbreviato 4-dentato, inferiori elongato lacerato-fimbriato. 

 Stamina fertilia 2, rariiis 4, ascendentia(?), exserta. Antherae biloculares, loculis divaricatis. 

 Stylus subaequaliter profunde bifidus. Achenia sicca, laevia, tribus saepius abortivis. 



Tribus 4. Monarde^. 



Corolla subaequaliter bilabiata. Stamina, 2 labii inferioris ascendentia, e labio superiori 

 exserta vel ei subwqualia, antberis margine connexis ; labii superioris abortiva v. rariiis fertilia, 

 tubo subinclusa, antheris liberis. 



31. Monarda. Linn Calyx cylindricus, 15-nervis, subaequalis, 5-dentatus, intiis fauce vil- 



losa. Corolla tubo longe exserto, fauce subinflata, bilabiata, labiis snbfequalilius ; superiori erecto 

 liueari integro, inferiori patente 3-fido. Stamina fertilia 2, ascendentia, e labio superiori exserta. 

 Antherae margine connexae, biloculares, loculis divaricatis. Stylus apice subaequaliter bifidus. 

 Achenia sicca, laevia. 



32. Blephilia. Rafin Calyx ovato-cylindricus, 10-nervis, intus fauce nuda, bilabiatus, labio 



superiori 3-dentatus dentibus subulato-aristatis, inferiori 2-dentatus dentil)us breviter aristatis 

 vel muticis. Corolla tubo exserto, fauce inflata, bilaltiata, labiis sub»qualibus : superiori erecto 

 lineari integro, inferiori patente trifido. Stamina fertilia 2, ascendentia, e labio superiori exserta. 

 Antherae margine connexae, biloculares, loculis divaricatis. Stylus apice subaequaliter bifidus. 

 Achenia sicca, laevia. 



The Monarda hirsuta Pursh, belongs to this genus, as well as the M. ciliata Linn, or Blephilia 

 ciliata Rafin. 



33. Zizyphora. Linn Calyx elongato-cylindricus, 15-nervis, suba>qualiter 5-dentatus, 



intiis fauce villosa. Corolla tubo calycem subaequante, bilabiata, labiis subwqualibus : superiori 

 erecto lineari integro, inferiori patente 3-fido. Stamina fertilia 2, ascendentia, e labio superiori 

 exserta vel rarius eo subbreviora. Antherae margine connexae, biloculares, loculis divaricatis. 

 Styli lobus superior brevissimus. Achenia sicca, laevia. 



Cunila capitata Linn, appears to me to have been correctly referred to this genus, although 

 in Z. capitata., hispanica, and tenuior Linn, the stamina are somewhat shorter than the upper lip 

 of the corolla ; a circumstance, however, which, in this instance, I should consider of little 

 importance. 



34? Cunila. Linn Calyx tubulosus, 10-15-nervis, subaequalis, dentibus 5 margine vil- 



losissimis. CoroUa tubo calycem subaequante, bilabiata, labiis subaequalibus : superiori erecto 

 emarginato, inferiori patente 3-fido. Stamina fertilia 2, ascendentia, e labio superiori exserta. 

 Antherae margine connexae (?), biloculares, loculis divaricatis. Stylus apice subinteger. Achenia 

 sicca, Iffivia. 



This genus thus restricted to C. mariana Linn., C. paniculaia Benth., another N. American 

 species unnamed in Linnaeus's Herbarium, and C. lythrifolia Benth., a Mexican plant in 

 IMr. Lindley's Herbarium, appears to me to belong to this tribe ; although, on account of the 

 manner in which the flowers are dried in the only specimen I have had an opportunity of dis- 



