448 SAPINDACE^. uEsculus. 



the Soutliern States from Kentucky and W. Tennessee to N. Carolina and Florida ; fl. 

 March to April. 



§ 3. Macrothyrsus, Reichenb. 1. c. Petals 4(-5), narrow, spatulate, sub- 

 equal, much exceeded by the stamens. Calyx regular or nearly so, narrow, tubu- 

 lar, 5-toothed. Fruit smooth except for the persistent spine-like base of the style. 

 — Macrothyrsus, Spach, 1. c. 61. — S. Atlantic and Gulf States. 



.^. parviflora, Walt. A shrub, 5 to 10 feet high : leaves pedately 5(-7)-foliolate; leaflets 

 large, obovate, finely serrate, sharply or even caudately acuminate, dark green and glabrous 

 above, pale and tomeutulose beneath ; racemose panicle very long, slender, at first spike- 

 like : calyx 3 lines in length, much exceeded by the narrow white petals, these in their turn 

 much surpassed by the long filiform stamens (inch to inch and half in length) : fruit small, 

 globose, tipped with the sharp and somewhat persistent style. — Car. 128; Chapm. Fl. 80; 

 Gray, PI. For. Trees N. A. t. 31. JE. macrostachija, Michx. Fl. i. 220; Jacq. Ec. i. 17, t. 9 ; 

 Sims, Bot. Mag. t. 2118 ; Ell. Sk. i. 436 ; Colla, Hort. Ripul. t. 19 ; Guimp. Otto & Hayue, 

 1. c. t. 26. — Upper country, Georgia, S. Carolina, and Alabama. An attractive species 

 frequent in cultivation. 



§ 4. Calothyrsus, Reichenb. 1. c. Petals 4, subequal, much exceeded by 



the stamens. Calyx short, symmetrical at the base ; limb 2-lipped and cleft 



somewhat more deejjly upon one side ; the lips entire or minutely 2-3-toothed. 



Fruit unarmed, at first (as well as the calyx) canescent-tomentulose, soon gla- 



brate. Flowers relatively small and very numerous. — Pax, 1. c. Calothyrsus, 



Spach, 1. c. 62. — Pacific Slope. 



uSj. Californica, Nutt. A tree of moderate height with purple branchlets : leaves 5-folio- 

 late ; petioles stout, fiattened or grooved above ; leaflets glabrous upon both surfaces, and 

 crenate-serrulate, oblong-lanceolate in outline, acutish to acuminate at the apex, but mostly 

 abrupt or even subcordate at the base, paler and yellowish green beneath, the outside pair 

 subsessile, or with short petiolules, the other three slender-stalked : petals with short claws 

 and oblong crisped blades. — Nutt. in Torr. & Gray, Fl. i. 251 ; Hook. & Arn. Bot. Beech. 

 327 ; Benth. PI. Hartw. 301 ; Nutt. Sylv. ii. 69, t. 64 ; Hook. Bot. Mag. t. 5077 ; Fl. Serres, 

 xiii. 39, t. 1312; Sargent, Silv. ii. 61, t. 71, 72. Calothi/rsus Californica, Spach, 1. c. Pavia 

 Californica, Uavt-w. Jour. Hort. Soc. Loud. ii. 123. — Western Central California from Mt. 

 Shasta (ace. to Brew. & Wats.) to Santa Barbara Co. and eastward to Fort Tejon, Rothrock ; 

 fl. ace. to locality May to July. 



JE. PArryi, Gray (Proc. Am. Acad. xvii. 200), is a related species of N. Lower California, 

 but on account of its 5-fid calyx scarcely to be referred to this section. It may reach S. Calif., 

 and may be readily distinguished by its obovate obtusish leaflets which are canescent-tomentu- 

 lose beneath. (N. Lower Calif., Pringle & Parry, Orcutt.) 



Obder XLV. POLYGALACE^. 

 By B. L. Robinson. 



Herbaceous, shrubby, or in warmer countries arborescent plants with watery 

 juice (except in the roots of certain species), simple alternate or more rarely 

 opposite or verticillate entire mostly exstipulate leaves, simple hairs, and zygo- 

 morphous pseudo-papilionaceous flowers. Sepals 5, free (in one foreign genus 

 adnate to the petals and androecium), strongly imbricated, the odd one dorsal, this 

 and the anterior pair external, small, sepaloid ; tlie lateral (inner) ones, com- 



