278 CI. VERBEXACE.+: (liAKEit). [Laiitaua. 



pube.<cent beneatli. Spikes solitaiy from the axil of each leaf, shortly 

 peduncled, at lirst globose, finally oblong ; bracts green, ovate, acute, 

 hairy, the lower j in. long. Corolla pink or lilac, with a yellow eye; 

 tube \ in. long; limb \ in. diam. Drupe purple. — Bot. Mag. t. 

 144!) ; C. B. Clarke in Hook. f. Fl. Brit. Ind. iv. 5i;;i. 



Upper Guinea. Lagos, Rutcland ! 



Ifflle Xiand. liritisli East Africa : Jur ; Jur Ghattas, Schiveinfi'.rth, 2207 ! 

 Niainniaui ; X;ibaml)isso River, Srhiveitifurf/i, 3749! 



A luuive of Tropical Aniericn, also natur.ilised in Tropical Asia. 



7. la. concinna, Jkiker in Kev) Bulletin^ 1895, 228. A much- 

 branched erect shrub. Branches very slender, pubescent. Leaves 

 opposite, petioled, ovate, \-\ in. long, crenate, rugose, green on both 

 surfaces, slightly pubescent above, densely pubescent beneath. Heads 

 globose, i in. diam., solitary, on ascending peduncles 1-2 in. long from 

 the axils of the leaves ; bracts oblong, foliaceous, ascending, pubescent, 

 \ in. long. Calyx small. Corolla-tube cylindrical, pilose, \ in. long; 

 lobes orbicular, patent. 



Xrile Xiand. British Somalilaiid : Wadaba ; Miss Edith Cole ! 3Irs. Lort- 

 Phillips 1 



3. LIPPIA, Linn. ; Benth. et Hook. f. Gen. PI. ii. 1142. 



Calyx small, membranous, 2-4-lobed, compressed ana 2-keeled in 

 the Tropical African species. Corolla-tube cylindrical ; limb patent, 

 obscurely bilabiate, with 4 round lobes. Stamens didynamous, inserted 

 about the middle of the corolla, included or just exserted. Ovary 2- 

 celled ; cells 1-ovuled ; style short; stigma oblique or recurved ; ovules 

 inserted at or near the base of the cells. Fruit without any fleshy 

 layer outside the two bony pyrenes. Seeds exalbumnious. — Under- 

 shrubs, rarely herbs, usually more or less hau-y and glandular. Leaves 

 opposite, ternate or verticillate. Spikes dense, small, globose or oblong 

 in the Tropical African species. Flowers small, each subtended by a 

 persistent bract. 



Species about 60 ; mostly Tropical American. 

 Trailing herb rooting at the nodes . . . . 1. L. nodijiora. 



Erect \inderslirubs. 



Bracts orbicular, obtuse. 



Peduncles very short . , . . . . 2. L. Oatesii. 



Peduncles long . . . . . . . 3. Z. Radula. 



Bracts cuspidate. 



Leaves small, orbicular or obovate . . . 4. Z. somalensis. 



Leaves small, oblong, rugose . . . . 5. X. asperljolia. 



Leaves larger, oblong or oblajiceolate-oblong, scarcely 



rugose . . . . . . . 6. X. adoensis. 



Bracts acuminate. 



Leaves opposite . . . . . . 7. X. ukambensis. 



Leaves ternate . . . . . . 8. X. Burtonii. 



Bracts acute , . . . . . . 9. X. plicata. 



