to the Genera. | XIV.—DIDYNAMIA 
103 
}Cymes densely capitate, 3-9-flowered, the heads subtended 
by 3~-4 involucrate Drage s ; fruit small, aie — large 
Con, 
a} 
el 
tOvary distinctly 4. lobed or -partite; fruit of 4, tai fewer, 
1-seeded indehiscent nutlets ; leaves almost always gland-dotted :— 
[p. 102 
§Ovary 4- pee nutlets with the ae small, basilar or 
slightly oblique to the outer side :— ] 
*|Nutlets dry :—[p. 105 
*Stamens declinate; anther-cells ultimately explanate 
confluent :—{p 
© Attachment of nutlets quite basilar; upper lobe of calyx 
eT broader than the rest and at least — than 
e 2 anterior lobes, or, if the calyx-lobes are subequal 
peak often, Hyptis always), the ssiniak exserted 
and the lowest pra concave :—[p. 104 
**Lower lip of corolla somewhat iedbie. flat or very 
slightly concave, gute narrower but hardly longer 
than the 4- met upper lip; upper lobe of calyx always 
ee - 
Bot in fruit with the upper lobe large 
pati recurved, its m gt ath ane on the tube, 
the other lobes narrow, subul 
Corolla-tube short ; ‘agai? ge ...736. Ocimum, 
* Corolla-tube usually long ; stigma ain 
7. Orthosiphon. 
Calyx Eee or declinate in fruit, the upper lobe 
broader the lateral and anterior pairs or 
atteae some only broader ton the 
anterior an a hae the lateral pair, not 
heads with idtate bracts; calyx 
upper se widely 1-lobed, anterior and lateral 
ies nited in an ulin or 4-toothed lower 
.738. Acrocephalus. 
we racemose or subspicate; calyx usually 
declinate, upper lip widely 1-lobed with the anterior 
and lateral pairs not connate, subequal, smaller ; 
or with upper lip 3-lobed, the posterior and lateral 
lobes being subconnate, and with a 2-lobed lower 
lip formed by the 2 subconnate anterior lobes ;— 
