2878 



PYRUS 



PYXIDANTHERA 



tomentose. La. Var. texana, Bailey (M. io&nsis var. 

 texana, Rehd.). Small much-branched tree, to 18 ft., 

 or sometimes a shrub forming thickets, with densely 

 tomentose branchlets which become glabrescent the 

 first or second year, differing from the type in having 

 smaller and much broader Ivs. that are not at all or 

 only slightly lobed and densely villous at maturity. 

 Texas, representing the southwestern extension of the 

 species. 



45. bracteata, Bailey (Malus bracteata, Rehd.). Tree, 

 to 30 ft. or more tall, forming a broad head: a gla- 

 brescent form: Ivs. elliptic-ovate to oblong-ovate, ser- 

 rate or incisely serrate and less deeply so than in P. 

 ioensis and with less deep lobing, sometimes slightly 

 lobed near the base, those .on the vigorous shoots 

 usually ovate and with recurved very short lobes on 

 either side and the margins commonly only slightly 

 serrate, the foliage glabrous or glabrescent except the 

 slightly pubescent Ivs. at the end of strong shoots: 

 racemes 3^5-fld., the pedicels about ^iin. long, gla- 

 brous or nearly so and bearing subulate bractlets 

 J^-^in. long which persist during flowering. Mo. 



P. alnifdlia, Franch. & Sav.=Sorbus. P. americAna, DC., and 

 P. Aucup&ria, Ehrh.=Sorbus. P. arbutifdlia, Linn. f.=Aronia. 

 P. Aria, Ehrh.=Sorbus. P. Biinyardii, Hort., said to be a hybrid 

 of which Chsenomeles Maulei is one parent, and therefore to be 

 referred to that genus: described as having striking chamois-red 

 fls. of large size. P. cardinalis, Hort.=Chamomeles japonica 

 var. cardinalis. P. Cyddnia, Linn.=Cydonia. P. domestica, 

 Ehrh.=Sorbus. P. florentina, Sarg. (Cratsegus florentina, Zucc. 

 Malus florentina, Schneid. Pyrus crataegifolia, Savi. Malus 

 crateegifolia, Koehne), considered by some writers to be of the 

 Malus section, by others to belong to Sorbus, and by still others to 

 be a hybrid between Pyrus and Sorbus (probably Sorbus torminalis 

 X Pyrus Malus) is a bush or small tree, local in N. Italy: Ivs. broad- 

 ovate in outline, with several sharp lobes: fls. white, about 1 in. 



across, in open terminal corymbs, opening very late: fr. J^in. long, 

 elliptic-oblong, red. B.M. 7423. G.C. III. 59:7. P. Folgneri, 

 Lev.=Sorbus. P. germdnica, Hook. f.=Mespilus. P. Maulei, 

 Mast.=Chsenomeles. P. Maerlodsei, Hort.=Cnsenomeles japonica 

 var. P. pinnatifida, Ehrh.=Sorbus. P. spitria, DC.=Sorbus. 

 P. sambudfdlia, Cham. & Schlecht.=Sorbus. P. thianshdnica, 

 Franch. =Sorbus. P. torminalis, Ehrh.=Sorbus. L H B 



PYXIDANTHERA (Greek, a small box and anthera; 

 the anthers opening transversely like the lid of a box). 

 Diapensiacese. PYXIE. FLOWERING Moss. PINE- 

 BARREN BEAUTY. An evergreen creeping plant found 

 in cushion-like masses in the sandy pine lands of N. J. 

 to N. C. When it flowers in early April to early May, 

 its white starry blossoms dot the light green or brown- 

 ish green If. and st. cushions. It grows best in moist 

 sandy soil in the full sunlight and sometimes on gravel 

 slopes of slight inclination. When growing amongst 

 fallen Ivs., its sts. become longer and the whole plant 

 more open in character. The plant is rarely cult., 

 although adapted to rock-gardens in sandy or gravelly 

 pockets. Related to Diapensia, an alpine plant, and 

 slightly to Galax. The only species is P. barbulata, 

 Michx. An evergreen herb with depressed prostrate 

 nearly glabrous sts., much branched at the base and 

 creeping: Ivs. numerous, blades leathery, linear-oblan- 

 ceolate, or linear-elliptic, imbricated, small, J^in. long: 

 calyx campanulate, lobes 5, oblong, obtuse; corolla 

 white, tube oblong-campanulate, petals 5, spatulate to 

 pbovate, spreading; anthers of 5 stamens yellow, open- 

 ing transversely; ovary 3-celled: caps. 3-valved, few- 

 seeded. B.M. 4592. Mn. 8:33. B.B. 2:583. Gn. 27, 

 p. 209. G. 36:649. J.F.2:150. 



JOHN W. HARSHBERGER. 



3300. Prairie States crab. Pyrus ioensis (X^) No. 44. 



