EEPOET Ot' THE BOTAXICAL EXCHANGE CLUB. 373 



Giant Tkees. — At a recent meeting of the Californian Academy 

 of Sciences Dr. A. W. Saxe made a preliminary report on a grove of 

 colossal Redwood Trees {Sequoia sempervirens) which has been dis- 

 covered on the course of the 8an Lorenzo, a river which takes its rise 

 near Saratoga, in Santa Clara county, and debouches into the Bay of 

 Monterey at Santa Cruz. The trunk of one is stated to have measured 

 a few inches less than 150 feet in circumference as high as a man can 

 reach, and the height was estimated at 160 feet. — See " American 

 Naturalist " for October. 



Tetrameeista panic[7LATa, Karz (p. 333). — I think that Mr. 

 Kurz has overlooked the fact that Dr. Hooker has fouaded a new 

 genus of Rutacece (Tetractomia, Flor. Ind., i., p. 491), upon the same 

 type from Maingay's Herbarium (290 in Kew Distrib.) which he has 

 referred under the above name to Ochnacece. — W. T. TnisELTON-DrER. 

 [We must also call attention to the new genus Bixarjrewia. Kurz. in 

 the same paper (and tab. 199), which is in all probability a new 

 species of Trichospermum^ Blume (Divlido carpus, A. Gray). — Ed. 

 JOTJUN. BoT.] 



€jctract^ antJ Sl&^tract^, 



EEPOET OE THE CURITORS OF THE BOTA^S'ICAL EX- 

 CHANGE CLUB EOR THE YEARS 1872-4. 

 ( Concluded from page 347. ) 



Rumex (sp.). " Single specimens sent from the side of ^ 

 tidal inlet from the river Erne, a little below Etford, Holbeton, 

 South Devon. Without tubercles, and considerably like R. domesticus, 

 but possibly a variety of ^. cm;?^f9. Only one root was found." — L\ 

 E. Archer Briggs, 1874. This ^w;?^3,r is evidently a form of crispus, 

 somewhat intermediate between vars. suhcordatm and elongatus. It 

 has the laK panicle and elongate branches common to the two vars., 

 but like the first it bears only a single tubercle, which is of small 

 size and gradually tapering into the midrib of the petal, as is some- 

 times the case in var. suhcordatm, but the fruit-petals are small, 

 and ovate-deltoid or triangular-ovate, as in var. elongatus, of which 

 an account by Dr. Trimen will be found in the "Journal of Botany," 

 1873, p. 237.— John T. Boswell. 



R. crispus, var. trigranulatus, mihi. " Swanbister, Orphir, Orkney, 

 1874; Brodick Arran, 1873; Seafield, near Kirkcaldy, Fife, 1874. I pro- 

 pose the name oi trigranulatus for a littoral vdviety o^ crispus, wKich has 

 a very dense panicle, with short, adpressed branches and small triangu- 

 lar-ovate fruit-petals, each of the three bearing a conspicuous tubercle. 

 This form is reproduced from seed. The panicle has somewhat the 

 appearance of R. domesticus, but in no other point does the plant ap- 

 proach that species. It agrees with var. elongatus in the shape of the 

 petals and in all three bearing tubercles, but it differs in the compact 



