iSgi-J Briefer Articles. 311 



this tissue, a theory which, we need hardly point out, is fully 

 consistent with the view of Prof. Sachs, that the phloem may 

 also be the seat of proteid-formation." — R. 



BRIEFER ARTICLES. 

 Pentstcinon Haydeui, n. sp. — CJf the Genuini group: a foot or two 



high, glabrous, the stems decumbent, simple or branching, verv leafy : 

 cauline leaves, linear-lanceolate to linear, entire, 3 to 5 inches long by 

 1 to 3 lines broad, sessile and clasping : inflorescence a compactly 

 crowded thvrse, the floral bracts from ovate-lanceolate and long-acum- 

 inate to ovate and acute, nearly equaling or the lower much exceeding 

 the flowers; peduncles none or short: calyx-lobes acuminate, 3 to 5 

 lines long: corolla an inch long or more, the throat broadly dilated 

 and the limb nearly equally lobed : sterile filament, bearded near the 

 summit: capsule equaling the calyx. 



This plant was first collected by Dr. F. V. Hayden, in the Laramie 

 mountains of Wyoming, during some one of his early surveys, without 

 flowers or fruit, and was referred by Dr. Gray to P. acuminates as a 

 form with linear cauline leaves. It was rediscovered during the past sea- 

 son, in flower and fruit, by Mr. H. L. Webber, of the Shaw School of 

 Botany, on the Dismal River in Thomas county, Nebraska, about a hun- 

 dred miles west of the 100th meridian. It has nearly the habit of the 

 more conspicuously cordate-bracted forms of P. acuminatus, but with 

 an extreme of discrepancy between the cauline leaves and floral bracts. 

 The flowers are much larger and the throat of the corolla more 

 dilated.— Sereno Watson, Cambridge, Mass. 



A remarkable orange tree.— There is in the herbarium of Broun 



University a specimen which is something of a curiosity. It was 

 sent us last spring by Mr. Rowland Hazard, one of our trustees, from 

 Santa Barbara, Cal. I quote from his letter of transmission. 



"It is an orange tree which for years has lived and borne fruit with- 

 out bark for a space of over seven inches entirely round the tree. I 

 first saw this tree in February, 1885. It had been injured by a fire 

 about three years before. When I saw it first it had a number of ripe 

 oranges on it and in March it bloomed and bore fruit in the fall. 

 The trunk was in substantially the same condition as you now see it. 

 ['here was a space just above the ground where there was no bark and 

 the sap-wood had rotted away, leaving only the heart-wood as the 



