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Desci-ipt'ion of several Ncio or Rare Plants which have lutelij 

 Jloxoered in the neigliiourhood of Edhibwgh, and chiefly in 

 the Royal Botanic Garden. By Dr Graham, Professoi- 

 of Botany in the University of Edinburgii. 



lOth Sept. 1830. 

 Calceolaria bicolor. 



C. bicolor ; foliis ovato-eordatis, venosissimis, rugosis, biserratis ; pedun- 



culis multifloris, dichotomo-umbellatis — Ruiz et Pavon. 

 Calceolaria bicolor, Ruiz et Pavon, Flor. Peru v. et Chil. i. 16. t. 25. fig. b. 



Pers. Synop. PI. 1. 15 — Sprengel, Syst. Veget. i, 147. 



Description Plant half shrubby, everywhere covered with short, soft, 



glandular pubescence. Stem (in our specimens, which are seedlings of 

 this season, 24 feet high) erect, purple at the base, green above, round, 

 much branched. Branches nearly round, ascending, or suberect at the 

 base, and above bent outwards at an obtuse angle. Leaves (3 inches 

 long, 24 broad,) opposite, very rarely ternate, petioled, spreading at right 

 angles to the stem, ovato-cordate, acute, duplicato-serrate, much veined, 

 undulate, wrinkled, the veins and middle rib prominent behind; petioles 

 below nearlv half the length of the leaves, shorter above, flattened on 

 the upper side, connate. Cymes peduncled, axillary and terminal, di- 

 chotomously branched, two opposite small subsessile suhentire ovato- 

 acuminate leaves or bractese being placed at the primary division of the 

 peduncle, and two flowers on simple pedicels in each cleft, the one as- 

 cending and first expanded, the other spreading or deflected. Calyx 

 segments elliptical, the lowest the narrowest and most acute, the upmost 

 the shortest. Corolla sulphur coloured, except the lower half of the 

 lower lip, which is white ; upper lip very small ; lower large, many- 

 nerved, linear, compressed, turned upwards, so as with its retuse extre- 

 mity to touch the upper lip till fully expanded, when it is separated 

 from it a little way, opening into the lower lip large ; at its base, on the 

 inside, there is a tuft of long hairs, every where else the pubescence on 

 the corolla is very short, and at the extremity of the lower lip it is 

 nearlv awanting. Stamens erect, thw lower lobes of the large yellow an- 

 thers" projecting from the apex of the upper lip. Style rather longer 

 than the stamens, slightl}' curved downwards at the apex, compressed 

 laterally, withering.. Stigma small, 2-lipped. Germen pubescent, pyra- 

 midal, grooved on its four sides, bilocular ; ovules numerous, on large 

 luidivided central placentae. 

 Ruiz and Pavon state this species to be a native of rocky places in Canta, 

 and we obtained the seeds from which our plants were raised by the 

 kind attention of Mr Cruckshanks, from CuUnay, in the same province 

 of Peru. They were sown in spring, and our first specimens came into 

 flower towards the end of July. It is an extremely pretty addition to 

 our cultivated species (now fifteen in all, exclusive of the hybrids, and 

 of the naiTow-leaved variety of C. inteffrifolia), resembling in colour the 

 pleasing subdued tint of C. scabiosafolia. 



Commelina formosa. 



C- formosa ,• caule ascendente, ramoso, repente, colorato, piloso, pilis re- 

 flexis ; foliis sessilibus, lanceolatis, acuminatis, planis, utrinque glabris; 

 gpatha cordata, corapressa ; floribus pentandriis ; pctalis insequalibus ; 

 staminibus inclusis, tribus fertilibus. 



Description Stem ascending, rooting, branched, red, especially above 



the joints, hairy, hairs reflected. Leaves lanceolate, acuminate, flat, 



