■10 TUE JOUKXAL OF BOTANY 



medius fere 7 mm. diam. ; lobi laterales 3 mm. long. ; labimn anticum 

 6"5 mm. long. 



Affinity apparently with P. Tliitnherf/ii Benth. The habit and 

 comparatively elongated inflorescences with only two flowers to the 

 verticil afford easy marks o£ recognition. 



Acrocephalus (§ Odontochili) katangensis, sp. nov. Planta annua, 

 spithamea, crebro ramosa ; ramis pubescentibus sat distanter foliosis ; 

 foliis parvis lineari-lanceolatis obtusis in petiolum brevena angustatis 

 utrinque glabris vel fere glabris ; oapiiulis parvis globosis ad apicem 

 ramvilorum laxe corymbosis sat longe pedunculatis ; hracfeis exteri- 

 orihits lineari-lanceolatis obtusis extimis 2 integris viridibusque ceteris 

 vitrinque lobo ovato inciso fuscO'Cyaneo prseditis ; bracteis interiorihus 

 oblate suborbicularibus siarsum fusco-cyaneis bracteis omnil)us pubes- 

 centibus ; calyeis villosuli labiis tubo longioribns antico bidentato 

 postico tridentato ; corolla) tubo ex calyce eminente cylindrico labio 

 antico ovato integro labii postiei lobo intermedio quadrato sat argute 

 bidentato extus pubescente lobis lateralibus ovato-oblongis obtusis ; 

 (jeniiaJihus exsertis. 



Belgian Congo, Elisabeth ville, 4800 ft. ; n. 10904. 



Folia plerumque l-2'5 cm. long., 2-5 mm. lat. ; petioli 1-3 mm. 

 long. Capitula 6x6 mm. ; horum pedunculus ± 2 cm. long. Bracteai 

 extimiB usque 13 mm. long., ceterse exteriores circa 10 mm. long., 

 harum lobi oolorati 4 x 2*5 mm. ; bracte» interiores circa 3x5 mm. 

 CaWx florescens 1-5 ram., fructescens 3 mm. long. Corollse tubus 

 2"5 mm. long. ; labium anticum vix 2 mm. long. ; labium posticum 

 2x2 mm. Nuculse anguste ellipticse, glabrie, brunnese, '7 mm. long. 



But for the only pubescent bracts this might be taken at first for 

 A. gracilis Briq. which is a member of another section. The affinity 

 seems to be \vith A, iododermis Briq, 



NOTES SUPPLEMENTAL TO THE FLORA OF BPtlSTOL. 

 By J. W. White, F.L.S. 



(Coiitmiied from p. 18.) 



Pi/i-i!s cordaia Desegl. non Desv. nee Boiss. {P. Pi raster Bor. 

 var. Jbesefjlisei Pouy & Camus). An extremely interesting discovery, 

 possibly unique in this country. On a joint excursion last May 

 Mr. Bucknall was the first to notice a couple of pear trees in flower 

 on the edge of a wood between Eangeworthy and Wickwar, West 

 Glouc. On Sept. 6 we found these fruiting abtmdantly, with a 

 smaller one that may not have flowered. The largest tree has a girth 

 of over four feet, and is about 40 ft. high with a spread of 30 ft. Its 

 age may date from a period prior to the enclosure of the district 

 in wiiich it stands. The leaves are cordate-orbicular or slightly 

 oblong, obtuse or sometimes shortly apiculate, minutely ci'enate- 

 serrate ; the fruit globular, in size about that of a large cherry 

 (diam. 20-25 mm.) on long erect- patent stalks. Thus the trees agree 

 well with the characters of Dcsrr/lisei so far as given by Eouy and 



