80 JOURNAL OF THE ARNOLD ARBORETUM [vol. ii 



ramuli initio laxe tenuiter pilosuli pilis griseis et paucis fulvis mixtis, horno- 

 tini autuinno glal)ri,flavo-brunnei vel ut annotini floriferi magis rubescentes 

 vel purpurascentes, nitiduli, saepe leviter pruinosi; gemmae (in No. 1836 

 Cusickii) ovoideo-oblongae, acutae, petiolis plusminusve aequilongae. 

 Folia textura coloreque ut in S. Lemmoni% initio fusco-pilosi pilis griseis 

 intermixtis (in costa etc.), pubescentia, deinde quamvis ut in S.Scouleriana^ 

 anguste lanceolata vel lanceolata, basi acuta vel saepissime satis obtusa, 

 apice acuta vel breviter acuminata (minimis lineari-ol^lanceolatis obtusi- 

 oribusexclusis), 3.5: 0.8 ad 6.5:1.1 vel ad 9:2 vel 8:2.1 cm. magna, margine 

 obscure subserrata vel satis distanter serrata, superne subtusque ut in Lent" 

 moniij subtus distincte albescentia vel glaucescentla, pruinosa, costa ele- 

 vata flava nervisque lateralibus flavis graciliter prominulis et satis indis- 

 tincte reticulata; petioli stipulaeque ut in Lemnwnii. Amenta praecocia 

 vel subcoetanea, cylindrica, densiflora, pedicello brevi foliola minima 2-3 

 lineari-lanceolata superne glabra subtus sericea decidua gerente 1-5 mm. 

 longo suffulta; mascula vix ultra 2.8 : 1. 2 cm. magna; bracteae atrofuscae, 

 obovato-oblongae, utrinque sericeae, obtusae; stamina 2, filamentis basi 

 parce pilosis, interdum paullo coalitis, bracteam duplo superantibus, an- 

 tlieris ellipsoideis flavis; glandula 1, oblongo-rectangularis, truncata, 

 bractea subtriplo brevior; amenta feminea sub anthesi 2-2.8:1 cm. magna; 

 bracteae ut in floribus masculis; flores ut in Levimonii; styli vix ultra 0.5 

 mm. longi; pedicelli vix ultra duplo longiores quam glandula; stigmata 

 stylo subaequilonga, breviter oblonga, divaricata; glandula ut in masculis. 

 Fructus maturi mihi tantum ignoti. 



Specimens examined; California. Plumas County: Indian Valley, without 

 date, Mrs. Austin (m., f., st.; type in C, sheet No. 31588; the same is sheet 361195 

 in C. U., 201006 Herb. Patterson in C. and sheet 34C815 Hcib. Schuette in C; on 

 sheet 2040G5 Herb. Patterson in C. is a label of Bebb's with the note: "I suppose 

 we call this all S. Aiisiinae — but I begin to fear that tlie dividing line between 

 Ausiinae and J^mmonii is hazy to say the least"). Sierra County: Sierra Valley, 

 without date, Lemmon (m., f.; sheet 7792 Herb. Bebb in C; apparently nothing but 

 typical Lemmonii; the same is sheet 7793), 



Oregon. U nion County: without date, Cubicle (m., f.; sheet 7760 in C; named 

 by Bebb "S. Lemmonii, mixed with flowers of S . flaveacens ,^* The male branchlets 

 are distinctly pruinose; the sterile specimen has lanceolate obovate acute leaves with 

 a more or less conspicuous crenate dentation^ a glabrous under surface, and dis- 

 tinct stipules). County ?: Mountains of Eastern Oregon; banks of streams, about 

 1350 m., Cusick (No. 1306, fr., st.; sheet 7759 in C; leaves and branchlets as in the 

 foregoing specimen); a slender shrub of strcambanks, April 19, May 9, September, 

 1898, same coll, (No. 1836, f.; sheet 109712 in C; named S. Lemmonii but looking 

 much like 5. Geyeriana, leaves without stomata in th( ir upper surface); apparently 

 same region, same date and coll. (No. 1835, f., m. st.; sheet 109711 in C; the large 

 leaves partly become greenish beneath, the bloom of the twigs is hardly recogniz- 

 able; in different herbaria are somewhat different specimens under this number.) 



Bebb (1891) said, that Cusick found the species in eastern Oregon but 

 unfortunately he did not quote Cusick's numbers. In Bebb's herbarium I 

 have found the three sheets of Cusick's just mentioned. To the sheet 7759 

 are added two letters of Cusick*s, in one of them (dated October 10, 1887) 

 he states that his numbers 1510 and 1610 represent S. Lemmonii. I did 



