PHYSOCARPUS 



AA. Carpels 2, turgid, tomentose. 

 B. Pedicels and calyx pubescent. 

 bracteatus, Rehd. (Opuldster bracteatus, Rydb. 0. 

 Ramaleyi, Nelson, partly). Shrub, to 6 ft.: Ivs. broadly 

 ovate in outline, rounded or subcordate at the base, 

 3-lobed, doubly crenate-serrate, obtuse or acute at the 

 apex, glabrous* or nearly so, 1-3 in. 

 long: corymbs many-fld.; bracts 

 obovate of spatulate, often foliace- 

 ous, persistent: fls. nearly J^in. 

 across, white : pods 2, united about 

 half. June. Colo. Plant more com- 

 pact and fls. larger than in P. opuli- 

 folius. 



BB. Pedicels and calyx glabrous 

 or nearly so. 



monogynus, Coult. (Opuldster 

 monogynus, Kuntze. Spiraeamonog- 

 yna, Torr. .VeiZ/ia 

 Torreyi. Wats.). Fig. 

 2937. To 3 ft. high: 

 Ivs. smaller, %-lM 

 in. long. incisely3 5- 

 lobed, with incisely 

 serrate lobes, usually 

 glabrous: corymbs 

 rather few-fld. ; bracts 

 lanceolate, caducous; 

 pedicels usually only 

 sparingly pubescent: 

 pods 1-2. Colo, to 

 Calif. G.F. 2:5 

 (adapted in Fig.2937). 



glabratus, Rehd. 

 (Opuldster glabratus, 

 Rydb.). Shrub. 2-4 

 ft.: Ivs. orbicular- 

 ovate, truncate or 



cordate at the base. 3-5-lobed, doubly crenate-serrate, 

 obtuse or rounded at the apex, glabrous, about 1 in. 

 long: corymbs rather small, but numerous; bracts 

 small, caducous: fls. about H m - across, white or pink: 

 pods 2. united to above the middle. June. Colo. 

 Very floriferous. 



P. capiiatu-?, Kuntze (Spiraea capitata, Pursh. Opulaster capita- 

 tus. Kuntze. S. opulifolia var. mollis, Torr. & Gray). Closely allied 

 to O. opulifolia. To 20 ft.: Ivs. somewhat larger, with serrate, more 

 elongated lobes, tomentose beneath: pedicels and calyx tomentose. 

 Ore. to Calif. P. mtdtaceus, Kunt*e (Neillia malvacea, Greene. 

 Opulaster pubescens, Rydb. Spiitea pauciflora, Xutt.). To 5 ft.: 

 Ivs. slightly 3-lobed, with crenately and obtusely toothed lobes, 

 usuallv pubescent: corymbs rather few-fld.: pods 2-3, not inflated, 

 tomentose, about as "long as sepals. Wyo., Idaho. B.M. 7758 

 (as Xeillia Torreyi). ALFRED REHDER. 



PHYSOCHLAINA (Greek, bladder, outer garment, 

 having reference to the inflated calyx). Also spelled 

 Physochlsena. Solanacex. Erect, nearly glabrous herbs: 

 Ivs. petioled, subentire: infl. a terminal corymb; calyx 

 campanulate. lobes 5, short, elongated in fr., over- 

 topping the caps.; corolla elongate, lobes 5, short- 

 imbricate in bud; stamens attached at the middle of 

 the tube; ovary 2-celled: fr. a 2-celled caps. About 5 

 species. Cent. Asia. P. praidUa, Hook. (P. grandiflbra, 

 Hook.). Perennial: sts. 2-4 ft., corymbose upward: 

 Ivs. 4-^6 in. long, 3 in. broad, irregular, base cuneate or 

 cordate on the same branch: fls. all pedicelled; calyx- 

 lobes lanceolate; corolla tubular -funnel -shaped or 

 sometimes shorter-funnel-shaped in wild examples, in 

 cult, examples wider sub-campanulate: fr. a caps. H m - 

 diam. Himalaya region. B.M. 4600. 



PHYSOPTYCHIS (Greek, bladder fold). Cruciferae. 

 Perennial plant, felty with stellate hairs: fls. yellow, 

 short-peduncled; calyx not saccate: fr. spherical, valves 

 net-veined; seeds without wings. Formerly included 

 in Vesicaria, but now separated chiefly by the mem- 



PHYSOSTEGIA 



2611 



2937. Physocarpus monogynus. 



branaceous not crustaceous siliques. One species, 

 Persia. P. gnaphalodes, Boiss. (Vesicaria gnaphalbdes, 

 Boiss.). Half shrub: sts. simple with basal Ivs.: Ivs. 

 elliptic-lanceolate, obtuse, with prominent nerves 

 below: fr. a short silique with deciduous style, 4-celled. 

 Persia. A small alpine plant which in general appear- 

 ance resembles an aubrietia, but its foliage is grayer 

 and its fls. are of a bright citron-yellow color. Spar- 

 ingly in cult, in Eu. 



PHYSOSLPHON (Greek, bladder tube). Orchidacea?. 

 Tufted epiphytes: sts. in the form of creeping rhizomes, 

 at the end 1-lvd., 1-2 sheaths below the If., not pseudo- 

 bulbous: If. coriaceous, narrow at base: infl. an elon- 

 gated raceme; fls. small, short-pedicelled, secund; sepals 

 joined at the base in an ovoid or urceolate tube, above 

 free, spreading; petals dwarfed in the base of the tube, 

 fleshy, obovate-cuneate; labellum small, articulate 

 with the base of the column, oblong-cuneate, concave, 

 midlobe shortly exceeding the others; column below 

 elevated, footless or produced in a short foot, clinan- 

 drium short, often obtuse, 3-lobed; anthers terminal, 

 deciduous, pollinia 2, waxy, ovoid. About 15 species, 

 Mex. to Brazil. P. Loddigesii, Lindl. Lf.-stalks 1-2 

 in. high, sheathed with a brown membrane: Ivs. 

 fleshy, about 4 in. high: scapes erect, 6-9 in. high, 

 12-15-fld., produced from the junction of the If.-stalk 

 and blade; scapes are produced by the same If. in suc- 

 cessive years: fls. small, petals and lip minute, hidden 

 in a green, 3-sided tube formed by the connate bases 

 of the sepals, free part of sepals orange-brown. Mex. 

 J.H. HI. 48:71. A coolhouse orchid sometimes offered 

 in trade-lists. P. osoroides, Kranzl. Rhizome long and 

 slender: sts. very short, almost none: Ivs. 3-cornered, 

 thick, lanceolate, up to 1J4 in. long, usually reddish: 

 fls. solitary or hi pairs, very shortly stalked, green- 

 spotted and suffused with purple outside, dark purple 

 inside; tube of sepals 1 in. long; petals and lip 1-1 Yz 

 in. long. S. Brazil. Said to be in cult, in Eu. 



F. TRACY HUBBAKD. 



PHYSOSTEGIA (Greek, bladder and covering, refer- 

 ring to the inflated fruiting calyx). Labiate. FALSE 

 DRAGON-HEAD. Hardy herbaceous perennials, native 

 to America, with spikes of gaping flowers of purple, 

 rose-color, or white; useful in borders and particularly 

 in wild-gardens. 



Smooth erect herbs with slender and wand-like sts. : 

 Ivs. opposite, sessile, mostly lanceolate or oblong and 

 usually serrate or dentate: fls. showy, pink to purple 

 and varying to white, in separate or panicled spikes; 

 calyx bell-shaped, swollen and remaining open in fr., 

 membranous, 10-nerved; teeth 5, equal; corolla 2-lipped, 

 inflated above; upper lip concave, rounded, entire or 

 nearly so; lower lip 3-lobed, the middle lobe commonly 

 notched; stamens 4, didynamous; anther-cells parallel. 

 A few species, X. Amer., mostly along stream banks 

 and in wet grounds, but thriving under good upland 

 garden conditions; sometimes named under Draco- 

 cephalum. P. austriaca of lists is probably Draco- 

 cephalum austriacum. 



virginiana, Benth. (P. virginica, Hort. Dracocepha- 

 lum virginianum, Linn.). Sts. mostly simple, to 4 ft., 

 producing large clumps in. cult. : Ivs. lanceolate, oblong- 

 lanceolate to linear-lanceolate, 3-5 in. long, finely or 

 rather coarsely serrate, the Ivs. prominent up to the 

 infl. : fls. an inch long, ranging from purplish red through 

 rosy pink and lilac. Que., west and south. B.M. 467. 

 Mn. 7:81. F.R.5:55. Gn.M. 1:121. F.E. 15:322. 

 Var. Slba, Hort., is a white-fld. form. R.H. 1898:336. 

 G.W. 7, p. 458. Var. speciosa, Gray, is a tall form with 

 very acutely serrate lanceolate Ivs. and dense-panicled 

 spikes. A Texan form with erect, imbricated fls. B.M. 

 3386 (P. imbricata). Var. gigantea, Hort., is advertised 

 as a giant form, 6-7 ft. tall, with large deep rose fls. 

 P. virginiana is a hardy vigorous plant of the easiest 



