182 



tegmenta saepissiine 0, exteriora 2 caeteris majora, marginibus 

 alba, centro viridia, linea centrali in tuberculo minimo dorsali 

 prope apicem segmenti terminante. Stamina 8-9, subaequalia, 

 perianthii segmentis aequilonga. Ovarium 3-quetrum ; styli 3, 

 brevissimi ; stigmata capitata. Fructus, vix maturus, 3-alatus. 



Tibet. Khamba ; near Khambajong, 4650 m., Younghus- 

 band, 92. 



This striking little species was collected by Col. Sir F. E. 

 Younghusband, on behalf of the Royal Botanic Garden, Calcutta, 

 during the earlier phase of the Tibet Mission. 



y ^ 4 88. Rheum laciniatum, Prain [Polygonaceae - Ruiniceae] ; 

 species elata, in grege Monticolarum cl. Maximowiczio proposito 

 ponenda, certissime B. officinalis Baill., et It. palmetto, Linn., 

 proxima, foliis tamen intricate dissectis ab ambobus facillime 

 distinguenda. 



Herba elata, caule folioso. Folia membranacea, pallide viridia, 

 utrinque sed praesertim subtus plus minusve scabriuscula, palnia- 

 tim segmentis irregulariter 1-2-pinnatim divisis 5-secta, ambitu 

 oblongo-ovata, majora 36 cm. longa, 24 cm. lata ; segmenta basal ia 

 lateralibus dimidio, lateralia centrali iterum fere dimidio breviora, 

 laminis omnium in pterygomata angusta subconf ormia secus nervos 

 expansa reductis ; basalia 10 cm. longa, 8 cm. lata, lobis 3-4-jugis 

 majoribus 4 cm. longis '2 cm. latis, laciniis majoribus -75 cm. longis 

 •25 cm. latis ; lateralia 20 cm. longa, 16 cm. lata, lobis 8-10-jugis 

 majoribus 8 cm. longis 7 cm., latis, laciniis majoribus 4 cm. longis 



lata ; petiolus 12-15 cm. longus, semi-cylindricus, scabriusculus ; 

 ocrea 7 cm. longa, membranacea, extra scabriuscula. Inflorescentia 

 paniculata, pyramidalis, ultra 40 cm. longa, rhachide ramisque 

 primum parce scabriusculis, demum glabrescentibus. Flares 

 parvuli, breviter pedicellati. Perianthii segmenta saepissinie 6, 

 subaequalia, herbacea, pallide viridia, apicibus conniventia. 

 Stamina 8-9, aequalia. perianthii segmentis dimidio breviora. 

 Ovarium 3-lobum ; styli 3, distincti, recurvi ; stigmata capitata. 

 Fructus ignotus. 



China. Szechuen, in ravines, 3300 m., Wilson, 4415. 



Mr. E. H. Wilson, who collected this species on behalf of Mee 

 J. V eitch & Sons, in ravines, at 10,000 ft., in Western China, sts 



that it is rare. 



Messrs. 

 states 



<**° 



j 4 mt-' A^ enium bireme, G. H. Wright [Filices-Polypodiaceae] ; 



A. n rightii, Eaton, proximum, rhac'hide coetaqne villosis ditt'ert. 



vel liS aar i c «latae, costa dense brunneo-villosa, venis uni- 



^™T;,^j^r superiorem cujusqiie fascicilli 



China. Tai-nio-shun, K. H. Wilson and W. J. Tutcher. . . 



