00 



XVII. Leucas, Br. Prodi: p. 504. 



Calyx ovatus vel cylindricus, 10-nervius, aequalis vel ore obliquus, 

 8 — lO-dentatus, fauce intus nuda vel villosa. Corolla tubo calycem 

 subsequante, bilabiata, labio superiore erecto, ovato, fornicato, integro, 

 extus villosissiino, inferiore patente, trifido, lobo medio integro. Sta- 

 mina 4, sub labio superiore adscendentia. Antherse loculis divaricatis, 

 confluentibus, subuniloculares. Styli lobus superior brevissimus. 

 Stigmata minuta. Achenia sicca, Isevia. 



§ 1. Hanistoma, Ehrenb. MSS. — Calyx tubulosus, ore obliquo, 

 inferne producto, supra fisso. Verticillastri nunc globosi, multiflori, 

 bracteis calyci subsequalibus ; nunc laxi, pauciflori, bracteis mi- 

 nutis. 



1. L. urticcrfolia (Br. Prodr. p. 504), caule herbaceo, brevissime 

 canescenti-tomentoso ; foliis petiolatis, ovatis, grosse dentatis, gla- 

 briusculis vel cano-pubescentibus ; verticillastris multifloris, globosis, 

 remotis ; bracteis lineari-lanceolatis, acutis, ciliatis, calycibus villosis, 

 ore obliquo, inferne producto, membranaceo, glabro, supra fisso, den- 

 tibus 8 — 10, abbreviatis, acutis, inferioribus majoribus. — Phlomis 

 urticcEfoUa, Vahl. Symb. 3. p. 76. Leucas membranacea, Benth. in 

 Wall. Cat. Herb. Ind. n. 2052. Hemistoma ovatum, Ehrenb. MSS. 



Hab. in Bundlecund et Travancore; 



The L. indica Br. {Phlomis indica Linn.) differs from this plant by 

 its stem and its rugose leaves thickly clothed with a silky down ; by 

 its calyxes being much larger, with the three lower nerves terminated 

 in short teeth, the upper ones scarcely, if at all, projecting beyond 

 the margin. It is not in Dr. Wallich's collections. The L. glabrata 

 Br. {^Phlomis glabrata Vahl), from the south-eastern coast of Africa, 

 has the calyx of this section, though in habit it comes near the L.pro- 

 cumbens and others of the section Orthokucas. 



§ 2. Plagiostoma. — Calyx turbinatus vel tubulosus, ore obliquo, su- 

 perne productiore. Verticillastri ssepius globosi, multiflori, solitarii 

 vel pauci, supremis nunc capitatis. Bracteaj calycibus sequales vel 

 paullo breviores. 



2. L. martinicensis (Br. Prodr. p. 504), herbacea ; caule erecto, 

 parce ramoso, tomentoso-pubescente, tetragono, sulcato ; foliis bre- 

 viter petiolatis, ovatis vel oblongis, basi attenuatis, crenatis, pubes- 

 centibus ; verticillastris globosis, dense multifloris, remotis, bracteis 

 subulatis, calyce paullo brevioribus ; calycibus tubulosis, incurvis, 

 basi membranaceis, apice striatis, villosis, ore obliquo, dentibus sub- 

 ulatis, rigidis, supremo longissimo. — Phlomis martinicensis, Sw. Prod, 

 p. 88. Phlomis caribaa, Jac. Ic. Rar. 1. 1. 110. Leucas polycephala, 

 Wall. Cat. Herb. Ind. n. 2051. 



Hab. in monte Taong Dong. 



This plant is also found in Brasil and in the West Indies, where 

 however it is probably not indigenous, but naturalized since the dis- 

 covery of the New World. 



3. L. decurva (Benth. in Wall. Cat. Herb. Ind. n. 2050), herbacea, 

 canescens ; foliis subsessilibus, ovatis vel ovato-oblono-is, crenatis • 

 verticillastris dens^ multifloris, remotis; bracteis oblongis vel lan- 

 ceolatis, calyce fructifero dimidio brevioribus ; calycibus pubescen- 

 tibus, elongatis, striatis, decurvis, ore obliquo, reflexo, dentibus lineari- 

 subulatis vix inaequalibus. 



A L. nutante differt calycibus longioribus, magis decurvis bracteis 

 lanceolatis nee subulatis, corolla minore, tubo filiformi. 

 Hab. ad Segain ripse Irawaddi. 



4. L. nutans (Spr. Syst. 2. p. 743), herbacea; caule erecto, piloso, 

 ramoso ; foliis petiolatis, oblongis vel oblongo-linearibus, grosse ser- 

 ratis, basi attenuatis, utrinque villosis ; verticillastris subsolitariis vel 

 approximatis, globosis, dense multifloris ; bracteis subulatis, ciliatis, 

 calyce fructifero dimidio brevioribus ; calycibus tubulosis, demum 

 elongatis, decurvis, striatis, pilosis, ore obliquo, dentibus abbrevi- 

 atis, setaceis, vix inaequalibus. — Phlomis nutans, Roth Nov. PI. Sp. 

 p. 203. 



Hab. ad ripas Irawaddi. 



5. L. Cephalotes (Spr. Syst. 2. p. 743), herbacea ; caule pubescente, 

 ramoso, folioso; foliis petiolatis, oblongis, serratis, basi attenuatis, 

 pubescentibus ; verticillastris subsolitariis, terminalibus, dense mul- 

 tifloris, globosis ; bracteis ovato-lanceolatis, acutis, nervosis, calycem 



• acquantibus; calycibus villosis, tubulosis, apice striatis, ore obliquo, 

 dentibus subulatis vix inaequalibus. — L. capitata, Desf. Mem. Mus. II. 

 p. 8. t. 4. Phlomis cephalotes, Roth Nov. PI. Sp. p. 262. 



Hab. in Napalia ; ad ripas Gangis. 



The bracteae are usually rather larger and more closely appressed 

 than is represented in Desfontaines's figure, which is otherwise very 

 good. 



6. L. Plukenetii (Spr. Syst. 2. p. 743 ?), herbacea ; caule erecto, 

 piloso, ramoso ; foliis breviter petiolatis, oblongis, grosse serratis 

 basi attenuatis ; pubescenti-villosis ; verticillastris subsolitariis vel 

 paucis, remotis, dense multifloris, globosis ; bracteis subulatis, ci- 

 liatis, calycem subaequantibus; calycibus turbinato-tubulosis, incurvis 

 basi glabris, apice striatis, pilosis, ore obliquo, dentibus abbreviatis 

 acutis, vix inaequalibus. — Phlomis Plukenetii, Roth Nov. PL Sp. 

 p. 261 ? Leucas cephalotes No. 2, Benth. in Wall. Cat. Herb. Ind. 

 n. 2043. Phlomis csculenta, Roxb. 1. c. 



Hab. in Hindustania. 



This plant agrees very well with Roth's description, except in the 

 stem, which is always hairy. In Dr. Hooker's and other herbaria I 

 have seen a variety from the Mauritius, which has the leaves scarcely 

 serrate and the flowers rather larger. 



Blume's Phlomis cephalotes (Bijdr. p. 830) appears to be a very 

 different plant from Roth's P. cephalotes. From a specimen in Smith's 

 herbarium brought by Commerson from Java, and another in the 

 Banksian herbarium from the Garden of Amsterdam, both of which 

 agree with Blume's description, I should consider his plant as a di- 

 stinct species intermediate between the L. zeylanica, of which it has 

 in many respects the habit and foliage, and the L. Plukenetii, of 

 which it has the inflorescence. The calyx is less hairy and more 

 oblique than in the L. Plukenetii. In the Banksian herbarium it 

 bears Solander's MS. name of Phlomis media, which specific name it 

 might aptly retain in transferring it to the genus Leucas. 



7. L. zeylanica (Br. Prodr. p. 504.), herbacea ; caule erecto, piloso, 

 ramoso ; foliis breviter petiolatis, oblongis veL oblongo-linearibus, in- 

 tegerrimis vel remote serratis, basi attenuatis, subglabris ; verticillas- 

 tris paucis, supremis capitatis, laxe multifloris, globosis ; bracteis sub- 

 ulatis, ciliatis, calyce subbrevioribus ; calycibus turbinatis, glabris, 

 ore obliquo, dentibus abbreviatis, supremis majoribus. — Phlomis zey- 

 lanica, Linn. Sp. PI. 820, non Roth, nee Roxb. Leucas involucrata, 

 Benth. in Wall. Cat. Herb. Ind. n. 2047. 



Hab. in Pegu et in Ceylona. 



I have compared this plant with the original specimens of Phlomis 

 zeylanica in Burmann's Ceylon herbarium, and also with Linnteus's 

 specimen in his own herbarium, where however he has subsequently 

 added a garden specimen of the L. Plukenetii. The plant sent by 

 Roxburgh and others as the Phi. zeylanica, is the L. linifolia, and 

 that described by Roth appears to be a variety of his Phi. dimidiata. 



8. L. linifolia (Spr. Syst. 2. p. 743), herbacea ; caule erecto, cano- 

 pubescente, ramoso ; foliis breviter petiolatis, oblongo-linearibus, re- 

 mote serratis, basi attenuatis, canescentibus ; verticillastris paucis, 

 globosis, dense multifloris, superioribus approximatis ; bracteis subu- 

 latis, ciliatis, calyce fructifero dimidio brevioribus; calycibus gla- 

 bris, turbinatis, ore obliquo, dentibus acutis, supremo maximo. — 

 Phlomis linifolia, Roth Nov. PL Spec. p. 260. P. zeylanica, Roxb. 

 I.e. 



" Flowers white.— This plant has a pleasant aromatic smell ; its 

 flowers are used by the Brahmins to decorate their deity Iswara," 

 Roxb. MSS. 



Hab. in Sillet Bengalse, et in Mauritio. 



9. Z. Wightiana, herbacea ; caule erecto, ramoso, glabriusculo vel 

 pilisraris, obversis pubescente ; foliis subsessilibus, oblongo-linearibus, 

 utrinque attenuatis, integerrimis, glabriusculis ; verticillastris parvis, 

 distinctis vel supremis approximatis, globosis, dense multifloris ; brac- 

 teis linearibus, ciliatis, calyces subaequantibus; calycibus turbinatis, 

 villoso-hispidis, ore obliquo, dentibus abbreviatis, acutis, vix inae- 

 qualibus. 



Hab Herb. Wight. 



10. L. hyssopifolia (Benth. in Wall. Cat. Herb. Ind. n. 2044), 



