21l! TRANS. OF THE ACAD. OP SCIENCE. 



glands near tlie base; throat naked, or usually with an irreg- 

 ularly dentate or ciliate membrane at the base of each lobe; 

 seeds oval, rounded, 0.2 1. long. — Abundantly distinguished 

 by the spathaceous calyx, which is not found in any other 

 allied species, though not rare in the sections Pneumonanthe 

 and Ccelanthe. 



Gentiana (Crossopktalum) bakrellata, spec. nov. : e 

 caudice perenni tunicato l--2-caulis, humilis, glaberrima, uni- 

 flora; foliis carnosulis obtusis margine tenuissime cartilagi- 

 neo-crenulatis, infimis lineari-oblongis in petiolum basi vagi- 

 nantem attenuatis, caulinis paucis linearibus basi connatis, 

 inferioribas 2 elongatis basi attenuatis, suramis 2--4 basi la- 

 tiore florera subsessilem fere involucrantibus acutis ; calycis 

 4-fidi lobis triangulato-lanceolatis tubo suo viz longioribus 

 tubum corollse longe excedentibus, exterioribus paalo latiori- 

 bus margine membranaceo ssepius dentatis*, corolla? laciniis 

 lineari-oblongis obtusis erecto-patulis margine medio breviter 

 ciliatis versus apicem dentatis tubo profit nde campanulato 

 intns ad basin filamentorura ciliato glandulifcro fere duplo 

 longioribus; ovario ovato basi attenuato, stigmatibus semi- 

 orbiculatis sessilibus; seminibus squamulosis. 



On the alpine summit of Mount Flora, in the Snowy 

 Range, Colorado, Dr. Parry; fl. September. — A perennial, 

 2--4 inches high ; radical leaves 1 inch long and 3--4 1. wide; 

 single pair of cauline leaves on the lower half of the short 

 stem 1^-1 1 inches long, narrowed at base; the 2—4 upper 

 involucral leaves much broader at base; calyx about 1 inch 

 and corollae 1| inches long; lobes of corolla deep azure blue, 

 about 1 inch long, 3 lines wide; tube inside greenish yellow, 

 with short purplish-brown filaments; lower part of the fila- 

 ments attached in the middle, the free edges beset with long 

 and slender fringes ; oblong glands between the bases of the 

 filaments very marked; seeds (unripe) very similar to those 

 of the allied G. crinita, rough from scales, which, properly 

 are dessicated vesicles, protruding epidermis cells. Our 

 species is in many respects the American representative of 

 the European G. ciliata; both are perennials with short pe- 

 duncles, with ciliated bases of the filaments and short oval 

 ovaries, but the seeds are very different.* 



* The section of Crossopetalum may be arranged thus: 

 a. Lepidospermese. 



1. G. crinita, Froel. : annua, in ppdunculis elongatis mulrifiora, crosso- 

 petala — Our American 67. detonsa can be distinguished only by thp nar- 

 row bases of the leaves ; the characters taken from the shape of th> j ov.iry 

 are variable ; whether the original European G. detonsa is distinct, I can 

 not at present ascertain. 



2. G. lanceolata, Gris. : perennis ? in pedunculis elongatis pauciflora, 

 leiopetala. 



