igig] SARGENT— NORTH AMERICAN TREES 231 



eastern Iowa, preserved in Herb. Mus. Paris (photograph Herb. Arnold Arbore- 

 tum), Biltmore, North Carolina (Herb. Bilt. no. 1271b), and of John Robinson, 

 Brookline, Massachusetts, June 1880. 



Magnolia virginla.na L. — M. glatica L. — This species was 

 based on the Tulipijera virginiana Plukenet, Ahn. Bot. 379. pi. 68, 

 and the Magnolia foliis ovato-lanceolatis Linnaeus, Hort. Cliff. 222; 

 Gronovius, Fl. Virg. 61; and the Magnolia Lauri folia siibtiis albi- 

 cante Catesby, Nat. Hist. Car. 1:39. pi. 30. 



There are two distinct forms of this tree, one with glabrous 

 branchlets and pedicels and usually narrow leaves, and one with 

 branchlets and pedicels thickly clothed with long, silvery white 

 hairs and often broader leaves. Specimens preserved in the British 

 Museum show that the former is the type of Linnaeus' species. 

 Tulipijera virginiana, etc., of Plukenet is represented in the Sloan 

 Herbarium by 2 specimens, one in Plukenet's own herbarium, the 

 other one of a number of plants collected in Maryland by Dr. Krieg 

 and a Mr. Vernon. The latter, Dr. Rendle tells I'ne, agrees with 

 Plukenet's figure and has a glabrous pedicel. Of the Hort. Cliff. 

 specimens Dr. Rendle writes: "We have a specimen labeled 

 glauca. The species' names, however, in Hort. Cliff, are rarely in 

 Linnaeus' handwriting and glauca is in the usual hand, but there 

 is also written in what may be Linnaeus' own hand Magnolia 

 Catesby, with a reference to t. 39; this suggests that Linnaeus 

 regarded the Hort. Cliff, plant as identical with Catesby's. The 

 specimen is in flower and has a glabrous pedicel." Catesby's 

 specimen in the British Museum has no flower, but his plate plainly 

 shows that the pedicel is glabrous. 



The tj^ical Magnolia glauca is a small tree rarely more than 10 m. high, or 

 often a shrub. It is the only form which grows from Massachusetts to south- 

 eastern Virginia. Farther south it is rare and I have only seen specimens from 

 Newbern, North Carohna, Darlington, Andrews, Bluffton, Georgetown, and 

 Yemassee, South Carolina, and Meldrin, Georgia. Specimens collected in 

 Florida in the vicinity of Eustis Lake, Lake County, by G. V. Nash (no. 575) 

 and in the neighborhood of Orlando, Orange County, by C. H. Baker and T. G. 

 Harbison have petioles, pedicels, and branchlets puberulous. For the form 

 with the pubescent pedicels and branchlets I suggest the name 



Magnolia virginiana var. australis, n. var. — Differing from the 

 tj^e in the silky white pubescence on the pedicels and branchlets. 



