76 JOURNAL OF THE 



[vol. n 



vous pubescence of the young leaves are the same in both types. The young 

 twigs are thin, slender, mostly covered with a grayish and rusty pubescence' 

 but soon becoming glabrous. 



Bebb's var. macrostachya has female aments which measure up to 6.5 cm. 

 in length but their peduncles are hardly different (Bebb says "more leafy "). 

 The style is 1 mm. long; the fruits are not yet quite mature and scarcely 

 more "tapering to a produced style" than those of the other forms. The 

 male aments are hardly a little larger (to 3.5 : 1.3 cm.), and scarcely more 

 silky than those of the type. In his main description Bebb says : " scales . . . 

 black, thinly pilose." The pedicels always are only 2 to 3 times and not 

 "4-6" times longer than the nectary. The var. sphaerostachya certainly is 

 nothing but "a depauperate or subalpine form" as Bebb himself indicated. 

 The type in Bebb's herbarium bears the No. 6752, and it is identical with 

 a cotype in the Gray herbarium. The reddish brown or orange-colored 

 branchlets show faint traces of a glaucous bloom thus pointing to var. 

 A ustinae (see later) . 



Bebb likened his species to S. macrocarpa ( = 8. Geyeriana) which "dif- 

 fers especially in its smaller pale acute scales, glabrate capsules, and nearly 

 sessile stigmas." S. Geyeriana meleina has a rathfer distinct style (up to 

 0.5 mm. long), and there seems to be no difference as to the pubescence of 

 the capsules. In this form of S. Geyeriana the glaucous bloom of the twigs 

 is also wanting. 



The leaves of S. Lemmonn are not only "paler or scarcely glaucous be- 

 neath" (Bebb) but the mature ones are distinctly glaucescent and by no 

 means "green, nearly alike on both sides," as Jepson says. See Lemmon's 

 specimen with mature leaves which Bebb makes the type in his herbarium 

 (No. 6753 Bebb). S. Lemmonii apparently has been misunderstood by re- 

 cent authors, and the diagnosis of Bebb is rather insufficient. Therefore 

 I thmk it best to give the following more complete description and an enu- 

 meration of the specimens which I have seen. Frutex erectus ut videtur 

 divaricato-ramosus, 1-3, raro ad 5 m. altus. Ramuli novelli tenuiter 

 serlceo piloslusculi (pilis argenteis ferrugineisque mixtis), hornotini glabri 

 vel fere glabri, interdum parce pruinosi (confer specimina a cl. Ware in 

 Mono Pass lecta), annotini biennesque brunnescentes, purpurascentes 

 (vel interdum fere atropuqxirei), glabri, nitiduli (in 5. Geyeriana opaci), 

 demum cinereo-nigrescentes; gemmae ut videtur ovoideo-oblongae vel 

 ovoideae, obtusiusculae, ut ramuli coloratae, demum glabrae, divarlcatae, 

 floriferae quam foliiferae crassiores. Folia membranacea, sed adulta satis 

 firma, anguste lanceolata, oblanceolata, anguste elliptico-lanceolata, basi 

 acuta vel subobtusa, apice acuta ad subacuminata, interdum subapiculata, 

 infima pleraque obtusiora, margine Integra vel (saltem ad medium) parce 

 distanter brevi-denticulata, infima saepe oblongo-spathulata interdum 

 densius obscure glanduloso-denticulata, 1 : 0.3 ad 2.5 : 0.6 cm., superiora 

 pcrfecte evoluta 3 : 0.8 ad 5.5 : 1 vel 7-9 : 1-1.5-1.8 cm. magna; superne 

 novella plus minus ve adpresse serieea vel sericeo-villosula, pilis griseis et 

 ferrugineis mixtis, deinde saepissime cito glabrescentia et adulta glabra 



