' 206 



Herha caespitosa, laete viridis, glabra, omnino tenuis^ habitu 

 STibalpino. Rhizoma verticale vel parum obliquum, turiones 

 foliosos multos baud dense aggregates et caules floriferos paucos 

 edens, Turiones 9-10 cm, longi, internodiis abbreviatis, Caulis 

 circiter 20 cm. altus, tenuis, strictus, erectus, teres, uniflorus, 

 internodiis folia duplo superantibns. Folia patentia, stricta, 

 anguste linearia, acuminata, leviter uninervia, vaginam versus 

 supra canaliculato-sulcata, vagina laminae diametrum aequante, 

 basalia (turionum) 3'3-5 cm. longa, caulina consimilia, 

 decrescentia, ima basi margine serrulato-scabra. Flares albi, 

 grate odorati, 2-2 cm. diametro. Bracteae calcyinae 4, 5 mm. 

 lon^ae, 4-5 mm. latae, ovatae, cuspidatae, adpressae, herbaceae, 

 paribus vix aequalibus. Calyx 1-6 cm. longus, in parte purpureo- 

 suffusus, basin versus obscure nervoso-striatus, apicem versus baud ' 

 attenuatus, dentibus lanceolatis acuminatis basi quincuncialiter 

 se segentibus 7-nerviis margine anguste scariosis. Petala 

 contigua, fauce immaculata, parce barbulata, barbellis albis 

 incrassatis discretis; lamina 1 cm, longa, subrbombea, irregu- 

 lariter grosseque dentata, venis 7 obscuris percursa, in unguem 

 longiorem (1-4 cm.) abrupte attenuata. Gynophorum 3 mm. 

 longum. Ovarium 7 mm. longum; columella placentalis 5-5 mm. 

 'longa, nitido-lucens, lutescenti-viridula, superne attenuata, ovula 

 circiter 30 gerens. 



Described from a living plant grown at Kew from seeds received 

 under the name D, Tenorei from a nurseryman, in 1894. It is 

 possible tbat its habitat is a subalpine locality in Italy. 



The specific name is chosen from its uniformly slender habit, 

 which applies equally to the stem, to the leaves, and to the calyx- 

 tube. 



The name D, Tenorei is unknown, and there is no indication in 

 the habit of the plant of its being of cultivated garden origin. 

 Z>. tenuis belongs to the section Barhulatum of the subgenus 

 Caryophyllastrum^ and seems to be allied to D. nitidus, D. 

 TnicTocheluSy and D. caesius, but is quite different from any one of 

 the three. The plant cannot be placed with any example of the 

 European material of the genus in the Kew Herbarium. The 

 associated characters which seem to mart it off from any other 

 species are — the bearded white coarsely dentate petals, the short 

 herbaceous cuspidate calycine bracts, and the bright green patent 

 leaves. ^ As to its land of origin, the only clue is the association of 

 the specific name on the label D. Tenorei with that of the Italian 

 botanist Tenore. 



792. Derris Lacei, Dunn [Leguminosae-Dalbergieae] ; 7). 

 ellipticaey Benth., facie approximat sed vexillo ecalloso et 

 legumine glabro distat. 



Frutex alte scandens, cortice rugoso, ramis lenticellatis. Folia 

 4 {-5)-juga, 22-26 cm. longa, petiolo 4-5-plo longiora, rachi 

 glabra ; stipulae caducae, 3 mm. longae ; foliola superiora lateralia 

 oblongo-lanceolata, apice abrupte vel sensim caudata, basi 

 rotundata vel cuneata, chartacea, glabra, 8-9 cm. lono-a, venis 

 marginem appropinquantibus 7-8-paribus utrinque inconspicuis ; 

 petioli 4 mm. longi; stipellae caducissimae. Paniculae racemi- 



