105 



and looser less strongly pedunculate spikes, longer-pedicelled 

 pods, which are longer, narrower and more acuminate, with 

 longer and more or less persistent instead of early deciduous 

 styles, and with the pubescence coarsely appressed-hairy instead 

 of thinly tomentulose. 



It would appear that so well distinguished a plant, if not a rare 

 species, would have been often collected unless by reason of its 

 very brief flowering period it has escaped notice when in flower 

 and at other times has been passed over for some common Mei- 

 bomia which in appearance it strongly suggests. 



NOTES ON LIRIODENDRON LEAVES 



By Edward W. Berry 

 (With Plates i and 2) 



The accompanying plates represent leaves borne near flower- 

 ing buds, either foliar flower-bud-scales or the next older leaf 

 than the bud-scale on full grown trees. Those figured on plate 

 1 are one-fourth natural size, and those on plate 2 are two-thirds 

 natural size. They all serve to confirm the view previously af- 

 firmed* that the diversion of sap for other purposes causes the 

 abbreviated Liriophyllum-like leaf-form in this genus (i. e., Lirio- 

 dendroii). The broadly-winged stipular appendages of the leaf- 

 stalk are much commoner this year (1901) than I have ever be- 

 fore observed them and it is quite possible that this excessive 

 stipular development may be a correlative of the long continuous 

 wet weather which was such a remarkable feature of the -past 

 spring. Further support of this view is furnished by the ordinary 

 stipules which seem to average much larger in size than usual. 



In some of the specimens the stipules are merely adnate, and 

 doubtless would, in a less wet season, become entirely separated, 

 splitting away from the petiole when it straightened, as do the 

 winged petiolar appendages in some species of Magnolia. Other 

 of the specimens however show evidence of a true persistent 

 union between petiole and stipule. 



Of Figs. 3, 6, 7, 8, 11, and 12, the only one that need be es- 

 pecially mentioned is the leaf shown in Figs. 6 and 7. Fig. 

 6 shows the entire leaf with its winged petiole, and Fig. 7 the en- 



*Bull. Torr. Club, 28. S. 1901. 



