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MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [Vol. 9, No. 1 



One matter that requires mention here is the dimorphic flowers of several or 

 very likely indeed all the species. The flowers may be hermaphrodite with exserted 

 stamens and style, or female with included stamens and exserted style. The 

 female flowers have shorter corollas and calyces than the hermaphrodite. Each 

 individual plant bears flowers of one or the other kind exclusively. It is obvious 

 that great care must be taken if the size of calyx or corolla is used to separate 

 species in this group. The occurrence of dimorphic flowers will be noted under 

 each species. 



As we have said, on Bentham's classification our group would make a new 

 section of Micromeria akin to the section P seudomelissa Benth. Until Satureja 

 can be completely revised I feel it better to describe but not to name this group: 



Herbae vel frutices robustae. Folia lata, saltern inferiora plus minusve dentata. 

 Inflorescentiae spiciformes, densae vel inferne aliquid interruptae; verticillastri 

 sessiles, densi, undique spectantes, flores sessiles vel subsessiles. Corollae 

 ubi cognitae albae vel albidae. 



A key to the species and varieties of this group follows. 

 Cauline leaves obtusely pointed or rounded at apex. 



Cauline leaves conspicuously and ± closely crenate-serrate, teeth 6-12 

 on each margin, pubescent on and between primary lateral nerves be- 

 neath; venation forming a conspicuous network impressed above and 

 raised beneath. 1. S, robusta. 



Cauline leaves very inconspicuously denticulate, often subentire, teeth 

 1-4 on each margin, puberulous on midrib and primary lateral nerves 

 beneath, not between them; venation not or scarcely visible. 4. S. vemayana. 



Cauline leaves acute at apex. 



Calyces very minutely puberulous, appearing subglabrous; leaves ovate, 



with up to 6 small teeth on margins. 5. S. c aeon den sis. 



Calyces densely and obviously pubescent: 



Cauline leaves small, up to 1.7 cm. long, very shortly pointed at apex, 



± densely pubescent beneath. 2. S. masukuensis. 



Cauline leaves larger, more than 2 cm. long, rarely less, much more 

 tapering at apex and less pubescent beneath: 

 Cauline leaves broadly ovate, very broadly rounded to subcordate 

 at base, mostly 2-3 cm. wide; spikes robust, 8-16 cm. long and 

 1.5-2 cm. wide; hermaphrodite flowers about 13 mm. long. 



3a. S. myriantha var. myriantba. 

 Cauline leaves ovate, rounded to cuneate at base, mostly up to 1.5 

 cm. wide; spikes less robust, up to about 8 cm. long and 1.5 cm. 

 wide; hermaphrodite flowers about 11 mm. long. 

 Stems up to inflorescence pubescent with spreading flexuous hairs. 



3b. S. myriantba vat. wellmanii. 

 Stems up to inflorescence puberulous with very short hairs. 



S. myriantha var. brachytricha. 



[l. Satureja robusta (Hook, f.) Brenan, comb. nov. 



Nepeta robusta Hook. f. Jour. Linn. Soc. Bot. 7: 212. 1864; Bak. in Thiselton-Dyer, 

 Fl. Trop. Afr. 5: 460. 1900. 



Confined to the Cameroon Mountain and Bamenda Highlands. Old Calabar, 

 given in the Flora of tropical Africa, is an impossible locality for this species, 

 though it might well occur further north in the Oban Hills. 



Floral dimorphism very marked. Hermaphrodite flowers (from Mann 1294): calyx 

 5-6 mm. long; corolla 9-10 mm. long. $ flowers (from Maitland 1399): calyx 3-4 

 mm. long; corolla 5-6 mm. long.] 



2. Satureja masukuensis (Bak.) Eyles. Vide supra. 



Most of the gatherings of this species are hermaphrodite, including the type. 

 Stolz 376, from southwestern Tanganyika Territory, is partly of hermaphrodite 

 and partly of female plants. 



