194 Dr Graham''s List of Rare Plants. 



strongest trees, and remove them far from their original situa- 

 tions; we may conceive water-spouts, of the period we have 

 been discussing, powerful enough to remove large fragments of 

 rock from their beds, and to convey them to remote regions, 

 where we are now surprised to find such strangers. I would 

 here make the general remark, that we ought not to judge of 

 the scale on which such operations proceeded at these early pe- 

 riods of the world's history, from what we observe now taking 

 place on the surface of our globe. But I do not assert that all 

 foreign blocks have been transported by the agency of water- 

 spouts ; many other causes may have brought them to their 

 present situations. (Compiled and curtailed from " Leonharcts 

 Jahrhuch^'' and the Munich " Gelehrte Anzeigen,'''') 



Description of several New or Rare Plants which have lately 

 Flowered in the Neighbourhood of Edinburgh, chiefly in the 

 Royal Botanic Garden. By Dr Graham, Prof of Botany. 



lO^A Dec. 1838. 

 Chorizema Dicksonii. 



C. Dicksonii ; caule fniticoso, erecto ; foliis sparsis, lanceolatis, subci- 

 liatis, mucronatis, subrecurvis, titrinque subpilosis ; racemis foliis 

 oppositis, spicatis ; calyce pills nigris, et albidis longioribus, vestitis. 

 Description. — Shruh erect, branched, slender, twigs ascending, green, 

 hairy, and sprinkled with small darker green spots. Leaves lanceolate, 

 spreading or reflected, ciliated, and having generally on both surfaces a 

 few long spreading hairs, mucronate, without stipules, shortly petiolate. 

 Racemes opposite to the leaves, spicate ; pedicels cernuous, solitary in 

 the axils of subulate deciduous bractese. Flowers few on each raceme, 

 collected near the apex, large and handsome, orange-red. Calyx 2-la- 

 biate, somewhat attenuated at the base, on the outside as well as the 

 pedicels and rachis hairy, the hairs being partly long, white, and 

 spreading, partly short, adpressed, and black, on the inside purple, and 

 less hairy ; upper lip bifid, the lobes diverging and broad ; lower lip tri- 

 partite, the segments lanceolato-subulate, reflected. Petals inserted 

 near the base of the calyx ; vexillum large, semi-orbicular, reflected, 

 notched, of nearly uniform red-orange on both sides, and towards the 

 keel with an oblong yellow spot, which is rather longer than the up- 

 per lip of the calyx ; also spathulato-elliptical, redder and darker than 

 the vexillum, connivent along the upper edge and at the apex, pitted 

 on the outside, and having a corresponding blunt tooth within ; keel 

 subacute, covered by the also, inflated, its petals agglutinated from the 

 apex to the claws, which are linear, and distant. tStamens included in 

 the keel, ten, free ; anthers small, yellow, erect, bursting in front. 

 Pistil about the same length as the stamens ; stigma slightly pointed ; 

 style flat, with a dense tuft of short white hairs immediately below the 

 Stigma on its outer side, and a small hook above ; germen stipitate, 

 closely covered with ratlver long adpressed hairs, colourless and silky 

 on the sides, black at both sutures. Omles numerous (about ten). 



