BORAGE FAMILY 721 



Fruit depressed -globose; nutlets incurved on the margins and separated 



by open spaces. 30. O. paradoxa. 



Fruit ovoid-conic; nutlets touching. 



Ridges of the nutlets honeycomb-crested; inflorescence narrow; leaves 



canesccnt and hispid. 31. O. eulophus. 



Ridges of the nutlets neither much interlacing nor cre^stcd. 



Inflorescence, at least in fruit, open, with elongate branches. 



Corolla 15-18 mm. long; calyx enlarging and becoming 15-18 



mm. long in fruit. 32. O. longifiora. 



Corolla 12-15 mm. long; calyx scarcely enlarging, in fruit less 

 than 1 cm. long. 33. O. Welhcrillii. 



Inflorescence narrow; stem slender. 

 Basal leaves spatulate. 



Corolla 12-14 mm. long, much exceeding the cal.vx. 



34. O. cristata. 



Corolla slightly exceeding the calyx. 22. O. cchinoidcs. 

 Basal leaves linear-oblanceolate; corolla slightly exceeding the 

 calyx. 35. 0. tenuis. 



Nutlets finely muricate; at least the inflorescence with yellowish hairs. 

 Plant low. 1-2 dm. high; basal leaves 2-3 cm. long. 3-7 mm. wide. 



Corolla about 1 cm. long, pure white; nutlets muricate on the back. 



36. O. fulvocanescens, 

 CoroUa 12-15 rajn. long, often with a yellow eye; nutlets rouglily papil- 

 lose. 38. O. ffavoculata. 



Plant 2-3 dm. high; basal leaves 4-10 cm. long, 7-15 mm. wide. 



37. O. nitida. 



jSTutlets smooth. . , 



Fruit not depressed; stem-leaves Imear or Imear-lanceolate. .^ ^ , 



Stem-leaves linear; nutlets brownish, obtuse, slightly ridged on the back. 



39. O. flara. 



Stem-leaves linear-lanceolate; nutlets ivory-white, acute, flat on the back. 



40. O. leucophaea. 



Friut depressed, acutely margined. 41. O. alata. 



CoroUa yellow, or with a yellow throat. 



Basal leaves spatxilate or oblanceolate ; corolla iisuaUy white with yellow throat; 



nutlets papillose. „ 38. O. flaroculata. 



Basal leaves narrowly linear-oblanceolate; corolla yellow; nutlets smooth. 



39. O, flava, 



1. O. cinerea Greene. Stems 1-3 dm. high, cinereous-strigose; leaves 

 elongate, linear-oblanceolate or linear, silvery-cinereous, with appressed hairs; 

 calyx-lobes broadly lanceolate; corolla 8-9 mm. long, 5-7 mm. broad; nutlets 

 light gray, smooth. Arid plains: Colo.— N.M. Submont. My-Jl. 



2. O. suffruticosa (Torr.) Greene. Stems 1-3 dm. high, decumbent or 

 ascending at the base, cinereous and hirsute; leaves linear-oblanceolate or Imear, 

 3-10 cm. long; calyx-lobes ovate-lanceolate; corolla 5-6 mm. long; nutlets more 

 or less tubercled and white-spotted. E. Jamesii Torr. Kryniizkia Jarmsii A. 

 Gray. Plains and foot-hills: S.D.— Tex.— N.M.— Utah— Wyo. Plain— Suh- 



mont. My-Jl. 



3. O. multicaulis (Torr.) Greene. Stems stout, 2-4 dm. high; leaves 

 i: ^ui^^^^^i^f^ r^^ i-iKionoiinlat.^ S-IO Cm. loHff: coroUa 5-6 mm. lone:; nutlets 



smooth and shining. Eritrichum muUicaulis Torr. Dry plains: Tex.— s Colo. 

 —Ariz. Son.—SubmonL My-Au. 



4. O. disticha Eastw. Stems about 3 dm. high, canescent as well as hispid; 

 leaves oblanceolate, 2^ cm. long, finely canescent-stngose above, appressed- 

 hirsute beneath; racemes few, distichous; ca^-x-lobes ovate-lanceolate, obttise, 

 4 mm long- corolla white, 5 mm. long, and about as wide; nutlets sohtar>", rounded 

 and arched on the dorsal side, mottled vdih brown, and shghtly papillose. Mesas : 



Utah. Son. Jl. 



6. O. pustulosa Rydb. Stems 3-5 dm. high, glabrous or nearly so through- 

 out* lower leaves linear-oblanceolate, the upper Imear or linear-lanceolate, 3-10 

 cm'lonff, sreen; flowers paniculate; sepals triangular-lanceolate, acute; coroUa 

 white; tube not exceeding the calj-x; limb ^S mm, broad; lobes orbicular; fruit 

 ^oT.T.oocoH.fr1nKn«P- Tinflfits mottled with liaht hrovm. Canons: se Ltah. ^on. 



Jl-Au, 



virgata (Porter) Greene. Stem 3-6 dm. high, hispid with yeUowish 

 lal leaves oblanceolate, hirsute and hispid, 3-8 cm. long; stem-leaves 

 r^Uo fU7 Tr>m Inno- «.Tid fullv as broad; nutlets m age brown or gray; 



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