74 PROCEEDINGS OF THE ACADEMY OP 



mens of P. pulcherrimum ; both of which, with P. capitatum, etc., do seem to 

 pas3 into Arctic form9 of P. cceruleum. 45g. Phlox Douglasii, Hook. 454. 

 P. humili^, Dougl. ? 455. P. Hoodii, Richardson. 403. Collomia gracilis, 

 Dougl. 41!^. C. linearis, Nutt. 4££- Gtilia pinnatifida, Nutt. ined. 457. 

 G, inconspicua, Dougl. 458. G. longiflora, Benth. ( Cantua longiflora, Torr.) 

 459. G. aggregata, Spreng. ( G. pulchella, Dougl.) With white as well as red 

 'ers. 460. G. spicata, Nutt., in PL Gamb. The same as 271 of Parry's 

 collection. ""361. G. Cohgbsta, Hook, var.? with the leaves mostly entire. 

 " Alpine." (4fi2. Chamaerhodos erh-ta. , See Rosacese.) 463. Gilia (Lepto- 

 dactylon) ptjhgbns, Benthi, from which G. Hookeri scarcetjTif at all differs. 



CONVOLVULACE.E. 



464. Cuscuta ABTEH8I8| Beyrich, var. pentagona, Engelm., a form with a 

 small calyx. 579. Evolvultjs argenteus, Pursh. 



SOLANACE^E. 



465. Solanum rostratum, Dun. 466. Physalis lobata, Torr., a form with 



the leaves little lobed; the corolla purple or blue. 467. Sol ahum triflorum, 

 Nutt. 



GENTIANACE.E. 



468, 469. Gentiaxa affixib, Griseb. ;* the former a more condensed form ; 

 the latter is 439 of Parry's separate collection. " Common in the subalpine 

 region." 470. G. Parryi, Engelm. f, a form with narrower leaves than Dr. 

 Parry's specimens of the preceding year. " Subalpine." 471. G. dbtonsa, 

 Griseb., which Dr. Engelmann, with reason, reduces to a variety of G. crinita.% 

 472. G. frigida, Hamke, var. algida, Griseb.: most beautiful specimens "of 

 Parry's 305, so new to this country. 473. G. acuta, Michx.; in various 

 forms ; perhaps in some sets with a little of the too nearly related G. tenuis^ 

 474. G. HUMiLis,Stev. 475. G. prostrata, var. Americana, Engelm. 476. Swer- 

 tia perexnis, L. 477. Pleurogyxe rotata, Griseb.|| "South Park, sub- 

 alpine." 553. Frasbra speciosa, Dougl. 



^^BCLEPIADE^E. 



478. Asclepias brachystephana, *Sq1^ ; a dwarf form of this rare species 

 c ollected on the pla ins. 479. A. speciosa, Torr. (A. Douglasii, Hook.) 



*G*ifTiANA apfinis, Oris. genuina : caule virescente; bracteis calycem fere sequantibus; calycis 

 lobis maequaiibus tubum longiorem integrum seu varius spathaeaso-fissuin aubaquantibus : corolla 

 anguste clavata pallide ccerulescente. * ' 



Gentiaxa affinis, var. brachy calyx : caule purpura^cente ; bracteis floruni superiorum brevis- 

 imis; calycis tubo abbreviate truncate seu brevissime dentate lobatove; corolla maiore suhT«*n- 

 tncisa azurea. J " w »^« 



This form has the appearance of a distinct species, but the characters taken from the calyx 

 are variable; besides, Dr. Parry has sent specimens ol it with a more distinctly lobed calvx 

 Other specimens collected by Mr. U. Engelmann, on Sweet Water River, have either an entire or 

 a semispathaceous calyx, with lobes of different proportions : his specimens show many ascendine 

 ;ems growing from a large root, with numerous yellowish flesh v fibres.— £. Eimelmann 



f Gentiana Parryi, Eng., a narrow-leaved form. Dr. Parry informs me that the narrow-leaved 



r-«™. tllc tuiww »i« ne>er warning, ana uisunguisn it readily from the allied G. calyn,sa —G. £. 



1 Gentiana barbellata, Engelm. in Trans. Acad. St. Louis, 2, t. 11 fined.), is Dr. Parry's 440, a 

 truly alpine, dwarf and very beautiful species, closely related to &. crinita' ciliata, Ac. 



i On examination of a series of specimens, Dr. Engelmann il inclined to view G. tenuis, Grfctb. 

 as an extreme form of G acuta, and also to adopt the conclusions of those who regard the latter 

 as specifically identical with G. Amarrtla of the Old World. 11, - adds the following note. 

 •«,i w?if SA £ CUTA ' Michx. Undoubtedly an American subspecies of G. Amanita. Messrs. Hall 

 ?n ? SK K r lVe *? a Ur 8 e .»? 1 .i e of *P™mens, which, together wit h Dr. Parry's (1861, Noa, 307 

 and 309) show an extreme variability iu size, manner of branching and arrangement of flowers 

 snape and size of leaves, nroDortion of calvx. ni™ »«ri *«&«» flfMmiia -«^ *■«. ~»*~~*. q Enael- 



mann. 



J Dr. Engelmann remarks up m this, 1st. That the ovule over the whole surface •{ the ova- 

 lan cavity; 2d. That the structure of the corolla is that of Xwrtia* the nectarian cri.„/ fl ,.* Al 



nan 

 bage 



Swertia, the nectarian glands at the 



tl»™+ *V« ii * ■ — . B ««**wmuiac^ itj a piwuiu lunutfi Will 



mat tne curious lateral stigma principally separates the genu*; from Swertia. 



[Mar. 



