SR ete eee 
COLLECTED SPECIES OF ASCLEPIADE. 487 
anthers as they slowly turn from the introrse to the horizontal, and then to the extrorsely reversed position, as 
explained above. The glands on the base of the corolla-lobes are distinct enough, but the surrounding scale is appar- 
ntly not, as it is ignored by many botanists; I have seen it variable, longer or shorter, but always present ; when 
fully developed, it forms a complete crested or fringed funnel. The stigma of this plant is most peculiar, formed as it 
is directly on the commissure of both carpels and representing a broad stigmatic line commencing about } line below 
the non-stigmatose apex, running down the sides to the same distance above the base, so that we have here a two- 
earpellary ovary with two lateral, but without any apical stigma. This line is beset with elongated stigmatic cells or 
papille about 0.1 mm. long and } as wide. At the proper time numerous pollen-grains are found adhering to the 
stigma, many of them developing their tubes. The seeds I have been able to examine were not fully matured, but 
such as they are, they appear oval-oblong, not flattened nor margined, but slightly angular and nearly 0.5 mm. in the 
longer diameter. 
Swertia® PERENNIS, L.; Gray, Syn. 124. — A span to a foot high; lowest leaves oblong or obovate, 2-4 [197] 
inches long ; upper few and narrow, sessile; flowers 1 inch wide. —Colorado and Utah mountains, in boggy 
places ; also in Europe and Asia. 
ERA SPECIOSA, Dougl. in Griseb. Gent. 329; Hook. Fl. 2, 66, tab. 153; Gray, Syn. 125. — Biennial ; stem 
stout, 2~6 feet high, very leafy ; leaves in pans and sixes, nervose, the radical and lower cauline ones linear-oblong, 
6-10 inches long, acutish or obtuse, the upper narrower and shorter; flowers numerous, in a long leafy thyrsus; 
lobes of the pene white (rarely bluish) Pte corolla oval-oblong, acutish (6 lines long), bearing a pair of contigu- 
ous and densely long-fringed glands about the middle, and a distant roll nathan inserted and setaceously = 
scale-like crown near the base; anthers versatile ; capsule compressed contrar the deep boat-shaped valves 
oblong seeds flat, margined. — Willow Spring, Arizona, Rothrock (251), in 1874; Colorado, Wolf (790), in 1873. A 
mountain species, found i in the Rocky Mountains and westward to California and Oregon, 
GENIOSTEMON, Lngelm. & Gray, is characterized by Gray in Contributions to North Ameri- 
can Botany (Proceedings of the American Academy of Arts and Sciences, vol. xvi. n. ser. vol. viii. 
1880, p. 104). — Eps. 
VII. COLLECTED SPECIES OF ASCLEPIADE®. 
From ENGELMANN AND GRAy’s PLANT# LINDHEIMERIAN#, Part I. (Boston Journ. Nat. Hist. Von. V. 1850). 
272. Ascuepras (OTaRIA) LInDHEIMERI, Engelm. & Gray [42]. 273. GONOLOBUS CYNANCHOIDES, Engelm. & 
Gray [43-44 
From THE REporT oN THE MExicaN Bounpary, Vot, II., Botany, 1859. 
RovLINIA UNIFARIA, Engelm. mss. (Gonolobus unifarius, Scheele) [160]. 
ACERATES AURICULATA, Engelm. mss. : caule erecto glabro; foliis sparsis linearibus filiformibus ; umbellis [160] 
pluribus axillaribus multiflorus breviter pellcancalntiv: pedicellis pilosis ecalyce extus viloso ; Te laciniis 
reflexis; cucullis gynostegio globoso sessili brevioribus apice leviter tridentatis margine invelntie basi latissime 
biauriculatis; folliculis lanceolatis longe rostratis brevibus. Dry ravines near the Copper Mines, and along the 
Mimbres, June and July ; Bigelow. 
Sar MMA HETEROPHYLLUM, Engelm. mss.; Torr. in Pacif. Railroad x V. p- 362[161]. AscLePras 
INVOLUCRATA, thei mss.{163]. ASCLEPIAS BRACHYSTEPHANA, Engelm. mss. [163]. 
From Parry’s BoTaNIcAL OrserVATIONS IN SourHERN Uran (American Naturauist, Vou. IX. 1875). 
207. ASCLEPIAS LEUCOPHYLLA, n. sp. Erect, tall; leaves (upper) sessile with a broad cordate base, [348] 
tapering to a sharp bristly point, white tomentose ; esibele many-flowered, alternating, lateral and terminal ; 
Lager a ite shorter than the peduncles ; calyx tomentose ; corolla woolly outside ; hoods as long as the short- 
stamineal tube, slightly spreading, ovate, obtuse, rounded on the inner margin ; horn from the lower part of 
‘ hort tube ; nectariferous pits at 
8 , L. —Single-stemmed perennials ; leaves oc corolla rotate, with a very s| 
Pet inci alternate, the lowest ones sapien fits an elon- the ee ly its lobes crested with a & fringe; anthers versatile ; 
gated, margined petiole ; inflorescence thyrsoid ; ven blue ; seeds 
